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  • Laboratorio

Ratones De Laboratorio

THE G-LAB Kult Helium - RATÓN GAMING USB - 800 a 3200 DPI Sensor óptico, Retroiluminación 7 Colores LED, 6 botones - Ratón de juego cómodo y ligero - Compatible con PC / Mac / Xbox One / PS4 - (Negro)

Esta es la alternativa preferida de otros clientes que compran artículos relacionados con ratones de laboratorio:

  • Bestseller No. 1 THE G-LAB Kult Helium - RATÓN GAMING USB - 800 a 3200 DPI Sensor óptico, Retroiluminación 7 Colores LED, 6 botones - Ratón de juego cómodo y ligero - Compatible con PC / Mac / Xbox One / PS4 - (Negro)
    THE G-LAB Kult Helium - RATÓN GAMING USB - 800 a...
    16,99 €
    Comprar en Amazon
    RebajasBestseller No. 2 Laboratorio portátil de escritura (6ª ed.)
    Laboratorio portátil de escritura (6ª ed.)
    14,96 € 14,21 €
    Comprar en Amazon
    Bestseller No. 3 Squeeky llega al Laboratorio (Squeeky el Raton de Laboratorio nº 4)
    Squeeky llega al Laboratorio (Squeeky el Raton de...
    3,57 €
    Comprar en Amazon
  • Para ver más opciones, consulta nuestro catálogo. Los productos y precios se actualizan con regularidad, así que regresa pronto para ver los nuevos artículos. Mira los vídeos para elegir lo mejor en ratones de laboratorio. Usa el buscador si te interesa otro producto o buscas algo más concreto:

  • Catálogo

    • 1 Mejores Vídeos De Ratones De Laboratorio
    • 2 Comprar Ratones De Laboratorio Online
      • 2.1 THE G-LAB Kult Helium - RATÓN GAMING USB - 800 a 3200 DPI Sensor óptico, Retroiluminación 7 Colores LED, 6 botones - Ratón de juego cómodo y ligero - Compatible con PC / Mac / Xbox One / PS4 - (Negro)
      • 2.2 Laboratorio portátil de escritura (6ª ed.)
      • 2.3 Squeeky llega al Laboratorio (Squeeky el Raton de Laboratorio nº 4)
      • 2.4 Alfombrilla Ratón Laboratorio De Química De Patrones Vintage Con Fórmulas Alfombrilla De Ratón Rectángulo Alfombrillas De Goma Antideslizantes Alfombrilla Para Accesorios De Oficina Computadoras
      • 2.5 Rosewood Pico hámster casa, Extra Grande, Color Azul translúcido
      • 2.6 Voltregà J-76078, Jaula para Hámster o Reptil, Volt. 981
      • 2.7 BPS® Jaula Hámster Chalé para Hámster con Escalera Túnel y Casa Especial Alta Calidad 28 * 21 * 31 cm BPS-1340 (Azul)
      • 2.8 Neceser de lavado para cosméticos con bolsa de recepción de ratones de laboratorio Litchi, material de piel antiarañazos y antiincrustantes, regalo increíble de 25 x 18 x 15 cm
      • 2.9 AmazonBasics - Jaula plegable de metal para mascota (una puerta, 91 cm largo)
      • 2.10 Hsmd987cd - Pañuelo para la cabeza de laboratorio de ratones, protección solar, ligera, resistente al viento, transpirable, para pesca, senderismo, correr, cuello, polaina, escudo facial
      • 2.11 También te puede interesar:
    Comprar  Lentes Laboratorio

    Mejores Vídeos De Ratones De Laboratorio

    Nuestra tienda te abre un gran abanico de posibilidades para que puedas elegir, si no estás seguro de cuál es la correcta, esperamos que los vídeos que hemos elegido para ti y nuestro catálogo de los productos con mejores opiniones y más vendidos te ayude a escoger lo mejor para ti.

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  •  
    THE G-LAB Kult Helium - RATÓN GAMING USB - 800 a 3200 DPI Sensor óptico, Retroiluminación 7 Colores LED, 6 botones - Ratón de juego cómodo y ligero - Compatible con PC / Mac / Xbox One / PS4 - (Negro)

    THE G-LAB Kult Helium - RATÓN GAMING USB - 800 a 3200 DPI Sensor óptico, Retroiluminación 7 Colores LED, 6 botones - Ratón de juego cómodo y ligero - Compatible con PC / Mac / Xbox One / PS4 - (Negro)

    • PRECISO Y ULTRA RÁPIDO. Gracias a su sensor óptico superior, el Kult helium tiene un tiempo de respuesta más rápido, más suave y más preciso. ¡El ratón ofrece la máxima precisión y un control perfecto para jugar en las mejores condiciones! Puede ajustar su sensibilidad de 800 a 3200 DPI en 4 niveles diferentes. Este ratón garantiza una frecuencia de actualización de 125 Hz y una aceleración máxima de 8G para no perderse nada de sus movimientos más rápidos.
    • RETROILUMINACIÓN DE 7 COLORES. Ilumina tu configuración con luz de fondo del ratón gaming Kult Helium. Día y noche, brillará en su escritorio. 7 colores diferentes están disponibles: verde, azul, púrpura, blanco, amarillo, cian, rosa, rojo. El efecto de luz "breath" alterna los colores uno tras otro para una representación dinámica y animada. El botón DPI parpadea cuando cambia la sensibilidad.
    • AGARRE CÓMODO. Kult Helium ha sido diseñado para brindarte la máxima comodidad para tus sesiones de juego más largas. Su forma ergonómica te permite acceder a todos los botones sin dificultad y se adapta a todos los tamaños de mano. Las empuñaduras laterales permiten un agarre perfecto para una sujeción ideal en todo el juego. Su diseño ambidiestro se adaptará tanto a diestro como a zurdo.
    • DURABILIDAD. Realmente construido para el rendimiento, el Kult Helium tiene una vida útil de más de 5 millones de clics. Kult Helium es muy ligero y pesa sólo 135g. Se adaptará a todos los jugadores, incluso a los más exigentes. Hemos proporcionado un cable trenzado reforzado que es mucho más fuerte y duradero que los cables de goma convencionales para una larga vida útil. Fácil de usar, enchúfalo y funcionará al instante. No hay ningún controlador para instalar de antemano.
    • GARANTÍA DE 2 AÑOS. En The G-LAB, estamos comprometidos a probar todos nuestros productos para garantizar la mejor calidad posible. Si el producto no le convence, Amazon le permite devolverlo en un plazo de 30 días sin costo alguno y obtener un reembolso completo. Este ratón gaming está garantizado en 2 años, es una inversión segura para. Muy atentos a la opinión de nuestros clientes, nuestro servicio post-venta español siempre estará allí para ayudarle si es necesario y responder en 24h.
    16,99 €
    Comprar en Amazon
     
    Comprar  Bata De Laboratorio Algodón
    Laboratorio portátil de escritura (6ª ed.)

    Laboratorio portátil de escritura (6ª ed.)

    • Díaz Reguera, Raquel (Author)
    14,21 €
    Comprar en Amazon
     
    Squeeky llega al Laboratorio (Squeeky el Raton de Laboratorio nº 4)

    Squeeky llega al Laboratorio (Squeeky el Raton de Laboratorio nº 4)

    • Cardozo, Joe (Author)
    3,57 €
    Comprar en Amazon
     
    Alfombrilla Ratón Laboratorio De Química De Patrones Vintage Con Fórmulas Alfombrilla De Ratón Rectángulo Alfombrillas De Goma Antideslizantes Alfombrilla Para Accesorios De Oficina Computadoras

    Alfombrilla Ratón Laboratorio De Química De Patrones Vintage Con Fórmulas Alfombrilla De Ratón Rectángulo Alfombrillas De Goma Antideslizantes Alfombrilla Para Accesorios De Oficina Computadoras

    • Dos modelos Alfombrilla Ratón Tamaño: 25 cm * 30 cm * 3 mm, Paquete incluido: 1 * Mouse Pad.
    • Base antideslizante: múltiples patrones con fondo antideslizante, este poliéster Mouse Mat no se deslizará con el mouse, súper duradero.
    • ¿Por qué compra esto? Mousepad: Este Alfombrilla gaming con tiene una alfombrilla de ratón personalizada de diseño único e interesante, que le da una nueva sensación para la vida de su oficina. Impresión a una cara.
    • Aplicación: hogar, escuela, dormitorio, oficina y cibercafé, regalo de amigos, computadora de escritorio, computadora portátil, computadora personal.
    • Nota: También aceptamos diseño de bricolaje con sus imágenes. Todos nuestros productos están hechos de materiales de alta calidad, no dude en contactarnos con cualquier pregunta.
    11,90 €
    Comprar en Amazon
     
    Rosewood Pico hámster casa, Extra Grande, Color Azul translúcido

    Rosewood Pico hámster casa, Extra Grande, Color Azul translúcido

    • Casa de alta calidad para hámsters y ratones disponible en tres opciones de color.
    • Diseño fácil de limpiar: alambre de todos los componentes se fija a la parte superior, así como usted levanta este Off todo se retira te deja con una base de fácil limpieza
    • Suministrado completo con exclusivo diseño mejorado (loft den), 'caída en el plato de botella de agua, alimentos y rueda maciza.
    • Apto para Enano Hamsters y Ratones syrians; Plus de 6 – 8 semanas de edad.
    • 50 cm de ancho, 36 cm de profundidad y 47 cm de alto; 8,5 mm de espacio entre barras
    41,89 €
    Comprar en Amazon
     
    Comprar  Laboratorio Juguete
    Voltregà J-76078, Jaula para Hámster o Reptil, Volt. 981

    Voltregà J-76078, Jaula para Hámster o Reptil, Volt. 981

    • Jaula hamster/rept volt. 981***
    • Los accesorios de mascotas más asqeuibles y exitosos del mercado.
    • Los mejores accesorios de mascotas para su cuidado y bienestar en todo momento.
    25,08 €
    Comprar en Amazon
     
    BPS® Jaula Hámster Chalé para Hámster con Escalera Túnel y Casa Especial Alta Calidad 28 * 21 * 31 cm BPS-1340 (Azul)

    BPS® Jaula Hámster Chalé para Hámster con Escalera Túnel y Casa Especial Alta Calidad 28 * 21 * 31 cm BPS-1340 (Azul)

    • Es una jaula para que tu hámster, jerbo o ratón viva cómodamente y tenga espacio suficiente para moverse con total libertad.
    • Esta jaula está fabricada con plástico, un material muy cómodo de desinfectar.
    • Incluye una escalera y una rueda de ejercicio.
    • Es muy cómoda de limpiar.
    • Jaula grande para hámster.
    17,99 €
    Comprar en Amazon
     
    Neceser de lavado para cosméticos con bolsa de recepción de ratones de laboratorio Litchi, material de piel antiarañazos y antiincrustantes, regalo increíble de 25 x 18 x 15 cm

    Neceser de lavado para cosméticos con bolsa de recepción de ratones de laboratorio Litchi, material de piel antiarañazos y antiincrustantes, regalo increíble de 25 x 18 x 15 cm

    • Multifunción: múltiples compartimentos para diferentes solicitudes de almacenamiento, cremalleras redondas resistentes de larga duración. La bolsa mantendrá tus accesorios cosméticos no se caigan fácilmente y es fácil de acceder, más rápido y más conveniente; se pliega para un fácil almacenamiento y viaje. Todo es fácil de encontrar.
    • Estilo de moda: diseño personalizado, no solo práctico sino también hermoso, a todo el mundo le encanta la belleza.
    • Material de alta calidad: material de cuero de grano de litchi, buena elasticidad, se puede utilizar repetidamente, anti-arañazos, anti-suciedad, fácil de limpiar.
    • Gran capacidad pero ligera: se adapta a casi todos tus artículos de tocador de tamaño de viaje como champú, cepillo de dientes y pasta de dientes, afeitadora, acondicionador, lavado corporal, aceite corporal, loción facial, etc.
    • ✓ Parámetros del producto: 25 x 18 x 15 cm.
    14,26 €
    Comprar en Amazon
     
    AmazonBasics - Jaula plegable de metal para mascota (una puerta, 91 cm largo)

    AmazonBasics - Jaula plegable de metal para mascota (una puerta, 91 cm largo)

    • Jaula para perro con diseño de puerta única para entrada delantera.
    • Dos cierres de pestillo deslizante para una mayor seguridad.
    • Resistente estructura de metal; se pliega para un transporte y un almacenamiento fáciles.
    • Incluye panel divisor opcional y bandeja de plástico para desechos extraíble.
    • Tamaño aproximado: 91x58x64 cm
    52,29 €
    Comprar en Amazon
     
    Hsmd987cd - Pañuelo para la cabeza de laboratorio de ratones, protección solar, ligera, resistente al viento, transpirable, para pesca, senderismo, correr, cuello, polaina, escudo facial

    Hsmd987cd - Pañuelo para la cabeza de laboratorio de ratones, protección solar, ligera, resistente al viento, transpirable, para pesca, senderismo, correr, cuello, polaina, escudo facial

    • Descripción del material: 100% fibra de poliéster (poliéster).
    • Rendimiento del producto altamente elástico sin costuras, bloque cilíndrico, textura suave, agradable al tacto, transpirable y de secado rápido, suave y ajustado, sin bolas, sin marcas, sin olor, fácil de limpiar, tela suave y agradable al tacto, ley versátil anticuada, sin cerradura, mejor elasticidad, lavable y no se decolora.
    • Escenarios aplicables a la playa, bicicleta, todoterreno, montañismo, escalada, esquí, viajes, fitness, etc.
    • Unisex.
    • Instrucciones de lavado: lavar a mano, no lavar a máquina, la temperatura del agua no es superior a 40 °C, no usar lejía, evitar la exposición
    5,48 €
    Comprar en Amazon
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    Última actualización el 2020-04-29 at 21:30. Precio y disponibilidad de los productos pueden variar.

    Laboratorio

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      NASUM Facial Cubierta Antipolvo, con 2 Filtros / 2 Cajas / 8 Algodones/Gafas Protectoras, contra Polvo/Partículas/Vapor/Gas, para Artesanos/Bricolaje/Fumigación de Pintura etc.
    • Gafas Laboratorio
      1PCS Gafas Protectoras - Gafas de Seguridad Bloquear Viento y Arena, Polvo, Rayos Uva y Gotas o Salpicaduras,para Laboratorio,Agricultura,Industria,Protección Personal
    • Mesa Laboratorio
      Plataforma Elevadora De Laboratorio Plataforma De Soporte De Laboratorio De Acero Inoxidable Plataforma A Prueba De Herrumbre Plataforma De Soporte De Tijera Ajustable Manual (100 * 100mm)
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      Octopus 1x 1000 ml frascos de Boca Ancha con tapón de Rosca, frascos para Productos químicos, Frasco de Laboratorio
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      Jarra desecadora de vidrio de laboratorio de 240 mm Desecador de laboratorio Secador con / Desechador de placa de porcelana al vacío

    Laboratorios Sys Jabon

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    Bolso De Laboratorio

    Kit De Laboratorio

    Laboratorio De Fisica

    Laboratorio Fotografico

    Tabla Periódica

    Hydrogen

    DiscoveredState
    1766 Gas
    Atomic MassDensity
    1.008 0.08988 g/L
    1 1 H 2
    ElectronsProtonsNeutrons
    1 1 0
    Electronic Configuration
    1s1
    • Discovered By: Henry Cavendish
    • Appearance: colorless gas
    • Category: diatomic nonmetal
    • Melting Point: 13.99 K
    • Boiling Point: 20.271 K
    • Ox. State: -1, 1
    • Bonding Type: diatomic
    • Electronegativity: 2.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.

    Helium

    DiscoveredState
    1895 Gas
    Atomic MassDensity
    4.0026022 0.1786 g/L
    4 2 He
    ElectronsProtonsNeutrons
    2 2 2
    Electronic Configuration
    1s2
    • Discovered By: Pierre Janssen
    • Appearance: colorless gas
    • Category: noble gas
    • Melting Point: 0.95 K
    • Boiling Point: 4.222 K
    • Ox. State:
    • Bonding Type: atomic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table. Its boiling and melting points are the lowest among all the elements.

    Lithium

    DiscoveredState
    1817 Solid
    Atomic MassDensity
    6.94 0.534 g/L
    7 3 Li
    ElectronsProtonsNeutrons
    3 3 4
    Electronic Configuration
    [He] 2s1
    • Discovered By: Johan August Arfwedson
    • Appearance: silvery-white
    • Category: alkali metal
    • Melting Point: 453.65 K
    • Boiling Point: 1615 K
    • Ox. State: 1
    • Bonding Type: metallic
    • Electronegativity: 0.98
    • Wiki Link: Source Link
    • Element Image: Image Link

    Lithium (from Greek:λίθος lithos, "stone") is a chemical element with the symbol Li and atomic number 3. It is a soft, silver-white metal belonging to the alkali metal group of chemical elements. Under standard conditions it is the lightest metal and the least dense solid element.

    Beryllium

    DiscoveredState
    1798 Solid
    Atomic MassDensity
    9.01218315 1.848 g/L
    9 4 Be
    ElectronsProtonsNeutrons
    4 4 5
    Electronic Configuration
    [He] 2s2
    • Discovered By: Louis Nicolas Vauquelin
    • Appearance: white-gray
    • Category: alkaline earth metal
    • Melting Point: 1560 K
    • Boiling Point: 2743 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity: 1.57
    • Wiki Link: Source Link
    • Element Image: Image Link

    Beryllium is a chemical element with symbol Be and atomic number 4. It is created through stellar nucleosynthesis and is a relatively rare element in the universe. It is a divalent element which occurs naturally only in combination with other elements in minerals.

    Boron

    DiscoveredState
    1807 Solid
    Atomic MassDensity
    10.81 2.46 g/L
    10 5 B
    ElectronsProtonsNeutrons
    5 5 5
    Electronic Configuration
    [He] 2s22p1
    • Discovered By: Joseph Louis Gay-Lussac
    • Appearance: black-brown
    • Category: metalloid
    • Melting Point: 2348 K
    • Boiling Point: 4273 K
    • Ox. State: 1, 2, 3
    • Bonding Type: covalent network
    • Electronegativity: 2.04
    • Wiki Link: Source Link
    • Element Image: Image Link

    Boron is a metalloid chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in both the Solar system and the Earth's crust. Boron is concentrated on Earth by the water-solubility of its more common naturally occurring compounds, the borate minerals.

    Carbon

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    12.011 2.26 g/L
    12 6 C
    ElectronsProtonsNeutrons
    6 6 6
    Electronic Configuration
    [He] 2s22p2
    • Discovered By: Ancient Egypt
    • Appearance: black
    • Category: polyatomic nonmetal
    • Melting Point: 3823 K
    • Boiling Point: 4300 K
    • Ox. State: -4, -3, -2, -1, 1, 2, 3, 4
    • Bonding Type: covalent network
    • Electronegativity: 2.55
    • Wiki Link: Source Link
    • Element Image: Image Link

    Carbon (from Latin:carbo "coal") is a chemical element with symbol C and atomic number 6. On the periodic table, it is the first (row 2) of six elements in column (group) 14, which have in common the composition of their outer electron shell. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds.

    Nitrogen

    DiscoveredState
    1772 Gas
    Atomic MassDensity
    14.0067 0.001251 g/L
    14 7 N 2
    ElectronsProtonsNeutrons
    7 7 7
    Electronic Configuration
    [He] 2s22p3
    • Discovered By: Daniel Rutherford
    • Appearance: colorless gas
    • Category: diatomic nonmetal
    • Melting Point: 63 K
    • Boiling Point: 77 K
    • Ox. State: -3, -2, -1, 1, 2, 3, 4, 5
    • Bonding Type: diatomic
    • Electronegativity: 3.04
    • Wiki Link: Source Link
    • Element Image: Image Link

    Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.

    Oxygen

    DiscoveredState
    1774 Gas
    Atomic MassDensity
    15.9994 1.429 g/L
    16 8 O 2
    ElectronsProtonsNeutrons
    8 8 8
    Electronic Configuration
    [He] 2s22p4
    • Discovered By: Carl Wilhelm Scheele
    • Appearance: colorless gas
    • Category: diatomic nonmetal
    • Melting Point: 54.36 K
    • Boiling Point: 90.188 K
    • Ox. State: -2, -1, 1, 2
    • Bonding Type: diatomic
    • Electronegativity: 3.44
    • Wiki Link: Source Link
    • Element Image: Image Link

    Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetal and oxidizing agent that readily forms compounds (notably oxides) with most elements. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium.

    Fluorine

    DiscoveredState
    1670 Gas
    Atomic MassDensity
    18.998 1.696 g/L
    19 9 F
    ElectronsProtonsNeutrons
    9 9 10
    Electronic Configuration
    [He] 2s22p5
    • Discovered By: André-Marie Ampère
    • Appearance:
    • Category: diatomic nonmetal
    • Melting Point: 53.48 K
    • Boiling Point: 85.03 K
    • Ox. State: -1
    • Bonding Type: atomic
    • Electronegativity: 3.98
    • Wiki Link: Source Link
    • Element Image: Image Link

    Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive:almost all other elements, including some noble gases, form compounds with fluorine.

    Neon

    DiscoveredState
    1898 Gas
    Atomic MassDensity
    20.17976 0.9002 g/L
    20 10 Ne
    ElectronsProtonsNeutrons
    10 10 10
    Electronic Configuration
    [He] 2s22p6
    • Discovered By: Morris Travers
    • Appearance: colorless gas
    • Category: noble gas
    • Melting Point: 24.56 K
    • Boiling Point: 27.104 K
    • Ox. State:
    • Bonding Type: atomic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Neon is a chemical element with symbol Ne and atomic number 10. It is in group 18 (noble gases) of the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.

    Sodium

    DiscoveredState
    1807 solid
    Atomic MassDensity
    22.989 0.968 g/L
    23 11 Na
    ElectronsProtonsNeutrons
    11 11 12
    Electronic Configuration
    [Ne] 3s1
    • Discovered By: Humphry Davy
    • Appearance: silvery white metallic
    • Category: alkali metal
    • Melting Point: 370.944 K
    • Boiling Point: 1156.09 K
    • Ox. State: -1, 1
    • Bonding Type: metallic
    • Electronegativity: 0.93
    • Wiki Link: Source Link
    • Element Image: Image Link

    Sodium /ˈsoʊdiəm/ is a chemical element with symbol Na (from Ancient Greek Νάτριο) and atomic number 11. It is a soft, silver-white, highly reactive metal. In the Periodic table it is in column 1 (alkali metals), and shares with the other six elements in that column that it has a single electron in its outer shell, which it readily donates, creating a positively charged atom - a cation.

    Magnesium

    DiscoveredState
    1808 solid
    Atomic MassDensity
    24.305 1.738 g/L
    24 12 Mg
    ElectronsProtonsNeutrons
    12 12 12
    Electronic Configuration
    [Ne] 3s2
    • Discovered By: Joseph Black
    • Appearance: shiny grey solid
    • Category: alkaline earth metal
    • Melting Point: 923 K
    • Boiling Point: 1363 K
    • Ox. State: 1, 2
    • Bonding Type: metallic
    • Electronegativity: 1.31
    • Wiki Link: Source Link
    • Element Image: Image Link

    Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table:they each have the same electron configuration in their outer electron shell producing a similar crystal structure. Magnesium is the ninth most abundant element in the universe.

    Aluminium

    DiscoveredState
    Ancient solid
    Atomic MassDensity
    26.98153857 2.7 g/L
    27 13 Al
    ElectronsProtonsNeutrons
    13 13 14
    Electronic Configuration
    [Ne] 3s23p1
    • Discovered By: Humphry Davy
    • Appearance: silvery gray metallic
    • Category: post-transition metal
    • Melting Point: 933.47 K
    • Boiling Point: 2743 K
    • Ox. State: 1, 3
    • Bonding Type: metallic
    • Electronegativity: 1.61
    • Wiki Link: Source Link
    • Element Image: Image Link

    Aluminium (or aluminum; see different endings) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal. Aluminium is the third most abundant element (after oxygen and silicon), and the most abundant metal, in the Earth's crust.

    Silicon

    DiscoveredState
    1854 solid
    Atomic MassDensity
    28.085 2.329 g/L
    28 14 Si
    ElectronsProtonsNeutrons
    14 14 14
    Electronic Configuration
    [Ne] 3s23p2
    • Discovered By: Jöns Jacob Berzelius
    • Appearance: crystalline
    • Category: metalloid
    • Melting Point: 1687 K
    • Boiling Point: 3538 K
    • Ox. State: -4, -3, -2, -1, 1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.9
    • Wiki Link: Source Link
    • Element Image: Image Link

    Silicon is a chemical element with symbol Si and atomic number 14. It is a tetravalent metalloid, more reactive than germanium, the metalloid directly below it in the table. Controversy about silicon's character dates to its discovery.

    Phosphorus

    DiscoveredState
    1669 solid
    Atomic MassDensity
    30.9737619985 1.823 g/L
    31 15 P
    ElectronsProtonsNeutrons
    15 15 16
    Electronic Configuration
    [Ne] 3s23p3
    • Discovered By: Hennig Brand
    • Appearance: colourless
    • Category: polyatomic nonmetal
    • Melting Point: 317 K
    • Boiling Point: 554 K
    • Ox. State: -3, -2, -1, 1, 2, 3, 4, 5
    • Bonding Type: covalent network
    • Electronegativity: 2.19
    • Wiki Link: Source Link
    • Element Image: Image Link

    Phosphorus is a chemical element with symbol P and atomic number 15. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but due to its high reactivity, phosphorus is never found as a free element on Earth. Instead phosphorus-containing minerals are almost always present in their maximally oxidised state, as inorganic phosphate rocks.

    Sulfur

    DiscoveredState
    Ancient solid
    Atomic MassDensity
    32.06 2.07 g/L
    32 16 S
    ElectronsProtonsNeutrons
    16 16 16
    Electronic Configuration
    [Ne] 3s23p4
    • Discovered By: Ancient china
    • Appearance: lemon yellow
    • Category: polyatomic nonmetal
    • Melting Point: 388.36 K
    • Boiling Point: 717.8 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: covalent network
    • Electronegativity: 2.58
    • Wiki Link: Source Link
    • Element Image: Image Link

    Sulfur or sulphur (see spelling differences) is a chemical element with symbol S and atomic number 16. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8.

    Chlorine

    DiscoveredState
    1774 Gas
    Atomic MassDensity
    35.45 3.2 g/L
    35 17 Cl
    ElectronsProtonsNeutrons
    17 17 18
    Electronic Configuration
    [Ne] 3s23p5
    • Discovered By: Carl Wilhelm Scheele
    • Appearance: pale yellow-green gas
    • Category: diatomic nonmetal
    • Melting Point: 171.6 K
    • Boiling Point: 239.11 K
    • Ox. State: -1, 1, 2, 3, 4, 5, 6, 7
    • Bonding Type: covalent network
    • Electronegativity: 3.16
    • Wiki Link: Source Link
    • Element Image: Image Link

    Chlorine is a chemical element with symbol Cl and atomic number 17. It also has a relative atomic mass of 35.5. Chlorine is in the halogen group (17) and is the second lightest halogen following fluorine.

    Argon

    DiscoveredState
    1894 Gas
    Atomic MassDensity
    39.9481 1.784 g/L
    40 18 Ar
    ElectronsProtonsNeutrons
    18 18 22
    Electronic Configuration
    [Ne] 3s23p6
    • Discovered By: Lord Rayleigh
    • Appearance: colorless gas
    • Category: noble gas
    • Melting Point: 83.81 K
    • Boiling Point: 87.302 K
    • Ox. State:
    • Bonding Type: atomic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third most common gas in the Earth's atmosphere, at 0.934% (9,340 ppmv), making it over twice as abundant as the next most common atmospheric gas, water vapor (which averages about 4000 ppmv, but varies greatly), and 23 times as abundant as the next most common non-condensing atmospheric gas, carbon dioxide (400 ppmv), and more than 500 times as abundant as the next most common noble gas, neon (18 ppmv).

    Potassium

    DiscoveredState
    1807 Solid
    Atomic MassDensity
    39.09831 0.862 g/L
    39 19 K
    ElectronsProtonsNeutrons
    19 19 20
    Electronic Configuration
    [Ar] 4s1
    • Discovered By: Humphry Davy
    • Appearance: silvery gray
    • Category: alkali metal
    • Melting Point: 336.7 K
    • Boiling Point: 1032 K
    • Ox. State: 1
    • Bonding Type: metallic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Potassium is a chemical element with symbol K (derived from Neo-Latin, kalium) and atomic number 19. It was first isolated from potash, the ashes of plants, from which its name is derived. In the Periodic table, potassium is one of seven elements in column (group) 1 (alkali metals):they all have a single valence electron in their outer electron shell, which they readily give up to create an atom with a positive charge - a cation, and combine with anions to form salts.

    Calcium

    DiscoveredState
    1808 Solid
    Atomic MassDensity
    40.0784 1.55 g/L
    40 20 Ca
    ElectronsProtonsNeutrons
    20 20 20
    Electronic Configuration
    [Ar] 4s2
    • Discovered By: Humphry Davy
    • Appearance:
    • Category: alkaline earth metal
    • Melting Point: 1115 K
    • Boiling Point: 1757 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray alkaline earth metal, fifth-most-abundant element by mass in the Earth's crust. The ion Ca2+ is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.

    Scandium

    DiscoveredState
    1876 Solid
    Atomic MassDensity
    44.9559085 2.985 g/L
    45 21 Sc
    ElectronsProtonsNeutrons
    21 21 24
    Electronic Configuration
    [Ar] 3d14s2
    • Discovered By: Lars Fredrik Nilson
    • Appearance: silvery white
    • Category: transition metal
    • Melting Point: 1814 K
    • Boiling Point: 3109 K
    • Ox. State: 1, 2, 3
    • Bonding Type: metallic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been sometimes classified as a rare earth element, together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia.

    Titanium

    DiscoveredState
    1791 Solid
    Atomic MassDensity
    44.9559085 4.506 g/L
    48 22 Ti
    ElectronsProtonsNeutrons
    22 22 26
    Electronic Configuration
    [Ar] 3d24s2
    • Discovered By: William Gregor
    • Appearance: silvery grey
    • Category: transition metal
    • Melting Point: 1941 K
    • Boiling Point: 3560 K
    • Ox. State: -1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.54
    • Wiki Link: Source Link
    • Element Image: Image Link

    Titanium is a chemical element with symbol Ti and atomic number 22. It is a lustrous transition metal with a silver color, low density and high strength. It is highly resistant to corrosion in sea water, aqua regia and chlorine.

    Vanadium

    DiscoveredState
    1803 Solid
    Atomic MassDensity
    50.94151 6 g/L
    51 23 V
    ElectronsProtonsNeutrons
    23 23 28
    Electronic Configuration
    [Ar] 3d34s2
    • Discovered By: Andrés Manuel del Río
    • Appearance: blue-silver-grey metal
    • Category: transition metal
    • Melting Point: 2183 K
    • Boiling Point: 3680 K
    • Ox. State: -1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.63
    • Wiki Link: Source Link
    • Element Image: Image Link

    Vanadium is a chemical element with symbol V and atomic number 23. It is a hard, silvery grey, ductile and malleable transition metal. The element is found only in chemically combined form in nature, but once isolated artificially, the formation of an oxide layer stabilizes the free metal somewhat against further oxidation.

    Chromium

    DiscoveredState
    1798 Solid
    Atomic MassDensity
    51.99616 7.19 g/L
    52 24 Cr
    ElectronsProtonsNeutrons
    24 24 28
    Electronic Configuration
    [Ar] 3d54s1
    • Discovered By: Louis Nicolas Vauquelin
    • Appearance: silvery metallic
    • Category: transition metal
    • Melting Point: 2180 K
    • Boiling Point: 2944 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 1.63
    • Wiki Link: Source Link
    • Element Image: Image Link

    Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.

    Manganese

    DiscoveredState
    1774 Solid
    Atomic MassDensity
    54.9380443 7.21 g/L
    55 25 Mn
    ElectronsProtonsNeutrons
    25 25 30
    Electronic Configuration
    [Ar] 3d54s2
    • Discovered By: Torbern Olof Bergman
    • Appearance: silvery metallic
    • Category: transition metal
    • Melting Point: 1519 K
    • Boiling Point: 2334 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 1.55
    • Wiki Link: Source Link
    • Element Image: Image Link

    Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in combination with iron, and in many minerals. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

    Iron

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    55.8452 7.874 g/L
    56 26 Fe
    ElectronsProtonsNeutrons
    26 26 30
    Electronic Configuration
    [Ar] 3d64s2
    • Discovered By: 5000 BC
    • Appearance: lustrous metallic with a grayish tinge
    • Category: transition metal
    • Melting Point: 1811 K
    • Boiling Point: 3134 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 1.83
    • Wiki Link: Source Link
    • Element Image: Image Link

    Iron is a chemical element with symbol Fe (from Latin:ferrum) and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core.

    Cobalt

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    58.9331944 8.9 g/L
    59 27 Co
    ElectronsProtonsNeutrons
    27 27 32
    Electronic Configuration
    [Ar] 3d74s2
    • Discovered By: Georg Brandt
    • Appearance: hard lustrous gray metal
    • Category: transition metal
    • Melting Point: 1768 K
    • Boiling Point: 3200 K
    • Ox. State: -1, 1, 2, 3, 4, 5
    • Bonding Type: metallic
    • Electronegativity: 1.88
    • Wiki Link: Source Link
    • Element Image: Image Link

    Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.

    Nickel

    DiscoveredState
    1751 Solid
    Atomic MassDensity
    58.69344 8.908 g/L
    58 28 Ni
    ElectronsProtonsNeutrons
    28 28 30
    Electronic Configuration
    [Ar] 3d84s2
    • Discovered By: Axel Fredrik Cronstedt
    • Appearance: lustrous, metallic, and silver with a gold tinge
    • Category: transition metal
    • Melting Point: 1728 K
    • Boiling Point: 3003 K
    • Ox. State: -1, 1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.91
    • Wiki Link: Source Link
    • Element Image: Image Link

    Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.

    Copper

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    63.5463 8.96 g/L
    64 29 Cu
    ElectronsProtonsNeutrons
    29 29 35
    Electronic Configuration
    [Ar] 3d104s1
    • Discovered By: Middle East
    • Appearance: red-orange metallic luster
    • Category: transition metal
    • Melting Point: 1357.77 K
    • Boiling Point: 2835 K
    • Ox. State: 1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.9
    • Wiki Link: Source Link
    • Element Image: Image Link

    Copper is a chemical element with symbol Cu (from Latin:cuprum) and atomic number 29. It is a soft, malleable and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a reddish-orange color.

    Zinc

    DiscoveredState
    1746 Solid
    Atomic MassDensity
    65.382 7.14 g/L
    65 30 Zn
    ElectronsProtonsNeutrons
    30 30 35
    Electronic Configuration
    [Ar] 3d104s2
    • Discovered By: India
    • Appearance: silver-gray
    • Category: transition metal
    • Melting Point: 692.68 K
    • Boiling Point: 1180 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity: 1.65
    • Wiki Link: Source Link
    • Element Image: Image Link

    Zinc, in commerce also spelter, is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium:its ion is of similar size and its only common oxidation state is +2.

    Gallium

    DiscoveredState
    1875 Solid
    Atomic MassDensity
    69.7231 5.91 g/L
    70 31 Ga
    ElectronsProtonsNeutrons
    31 31 39
    Electronic Configuration
    [Ar] 3d104s24p1
    • Discovered By: Lecoq de Boisbaudran
    • Appearance: silver-white
    • Category: post-transition metal
    • Melting Point: 302.9146 K
    • Boiling Point: 2673 K
    • Ox. State: 1, 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.81
    • Wiki Link: Source Link
    • Element Image: Image Link

    Gallium is a chemical element with symbol Ga and atomic number 31. Elemental gallium does not occur in free form in nature, but as the gallium(III) compounds that are in trace amounts in zinc ores and in bauxite. Gallium is a soft, silvery metal, and elemental gallium is a brittle solid at low temperatures, and melts at 29.76 °C (85.57 °F) (slightly above room temperature).

    Germanium

    DiscoveredState
    1886 Solid
    Atomic MassDensity
    72.6308 5.323 g/L
    73 32 Ge
    ElectronsProtonsNeutrons
    32 32 41
    Electronic Configuration
    [Ar] 3d104s24p2
    • Discovered By: Lecoq de Boisbaudran
    • Appearance: grayish-white
    • Category: metalloid
    • Melting Point: 1211.4 K
    • Boiling Point: 3106 K
    • Ox. State: -4, 1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 2.01
    • Wiki Link: Source Link
    • Element Image: Image Link

    Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Purified germanium is a semiconductor, with an appearance most similar to elemental silicon.

    Arsenic

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    74.9215956 5.727 g/L
    75 33 As
    ElectronsProtonsNeutrons
    33 33 42
    Electronic Configuration
    [Ar] 3d104s24p3
    • Discovered By: Bronze Age
    • Appearance: metallic grey
    • Category: metalloid
    • Melting Point: 1090 K
    • Boiling Point: 887 K
    • Ox. State: -3, 2, 3, 5
    • Bonding Type: metallic
    • Electronegativity: 2.18
    • Wiki Link: Source Link
    • Element Image: Image Link

    Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. Arsenic is a metalloid.

    Selenium

    DiscoveredState
    1817 Solid
    Atomic MassDensity
    78.9718 4.81 g/L
    79 34 Se
    ElectronsProtonsNeutrons
    34 34 45
    Electronic Configuration
    [Ar] 3d104s24p4
    • Discovered By: Jöns Jakob Berzelius
    • Appearance: black, red
    • Category: polyatomic nonmetal
    • Melting Point: 494 K
    • Boiling Point: 958 K
    • Ox. State: -2, 2, 4, 6
    • Bonding Type: metallic
    • Electronegativity: 2.55
    • Wiki Link: Source Link
    • Element Image: Image Link

    Selenium is a chemical element with symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and tellurium. It rarely occurs in its elemental state in nature, or as pure ore compounds.

    Bromine

    DiscoveredState
    1826 Liquid
    Atomic MassDensity
    79.904 23.1028 g/L
    80 35 Br 2
    ElectronsProtonsNeutrons
    35 35 45
    Electronic Configuration
    [Ar] 3d104s24p5
    • Discovered By: Antoine Jérôme Balard
    • Appearance:
    • Category: diatomic nonmetal
    • Melting Point: 265.8 K
    • Boiling Point: 332 K
    • Ox. State: -1, 1, 3, 4, 5, 7
    • Bonding Type: covalent network
    • Electronegativity: 2.96
    • Wiki Link: Source Link
    • Element Image: Image Link

    Bromine (from Ancient Greek:βρῶμος, brómos, meaning "stench") is a chemical element with symbol Br, and atomic number 35. It is a halogen. The element was isolated independently by two chemists, Carl Jacob Löwig and Antoine Jerome Balard, in 1825–1826.

    Krypton

    DiscoveredState
    1898 Gas
    Atomic MassDensity
    83.7982 3.749 g/L
    84 36 Kr
    ElectronsProtonsNeutrons
    36 36 48
    Electronic Configuration
    [Ar] 3d104s24p6
    • Discovered By: William Ramsay
    • Appearance: colorless gas
    • Category: noble gas
    • Melting Point: 115.78 K
    • Boiling Point: 119.93 K
    • Ox. State: 2
    • Bonding Type: atomic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Krypton (from Greek:κρυπτός kryptos "the hidden one") is a chemical element with symbol Kr and atomic number 36. It is a member of group 18 (noble gases) elements. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionally distilling liquefied air, and is often used with other rare gases in fluorescent lamps.

    Rubidium

    DiscoveredState
    1861 Solid
    Atomic MassDensity
    85.46783 1.532 g/L
    85 37 Rb
    ElectronsProtonsNeutrons
    37 37 48
    Electronic Configuration
    [Kr] 5s1
    • Discovered By: Robert Bunsen
    • Appearance: grey white
    • Category: alkali metal
    • Melting Point: 312.45 K
    • Boiling Point: 961 K
    • Ox. State: 1
    • Bonding Type: metallic
    • Electronegativity: 0.82
    • Wiki Link: Source Link
    • Element Image: Image Link

    Rubidium is a chemical element with symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air.

    Strontium

    DiscoveredState
    1790 Solid
    Atomic MassDensity
    87.621 2.64 g/L
    88 38 Sr
    ElectronsProtonsNeutrons
    38 38 50
    Electronic Configuration
    [Kr] 5s2
    • Discovered By: William Cruickshank (chemist)
    • Appearance:
    • Category: alkaline earth metal
    • Melting Point: 1050 K
    • Boiling Point: 1650 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity: 0.95
    • Wiki Link: Source Link
    • Element Image: Image Link

    Strontium is a chemical element with symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when it is exposed to air.

    Yttrium

    DiscoveredState
    1794 Solid
    Atomic MassDensity
    88.905842 4.472 g/L
    89 39 Y
    ElectronsProtonsNeutrons
    39 39 50
    Electronic Configuration
    [Kr] 4d15s2
    • Discovered By: Johan Gadolin
    • Appearance: silvery white
    • Category: transition metal
    • Melting Point: 1799 K
    • Boiling Point: 3203 K
    • Ox. State: 1, 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.22
    • Wiki Link: Source Link
    • Element Image: Image Link

    Yttrium is a chemical element with symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and it has often been classified as a "rare earth element". Yttrium is almost always found combined with the lanthanides in rare earth minerals and is never found in nature as a free element.

    Zirconium

    DiscoveredState
    1789 Solid
    Atomic MassDensity
    91.2242 6.52 g/L
    91 40 Zr
    ElectronsProtonsNeutrons
    40 40 51
    Electronic Configuration
    [Kr] 4d25s2
    • Discovered By: Martin Heinrich Klaproth
    • Appearance: silvery white
    • Category: transition metal
    • Melting Point: 2128 K
    • Boiling Point: 4650 K
    • Ox. State: 1, 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.33
    • Wiki Link: Source Link
    • Element Image: Image Link

    Zirconium is a chemical element with symbol Zr and atomic number 40. The name of zirconium is taken from the name of the mineral zircon, the most important source of zirconium. The word zircon comes from the Persian word zargun زرگون, meaning "gold-colored".

    Niobium

    DiscoveredState
    1801 Solid
    Atomic MassDensity
    92.906372 8.57 g/L
    93 41 Nb
    ElectronsProtonsNeutrons
    41 41 52
    Electronic Configuration
    [Kr] 4d45s1
    • Discovered By: Charles Hatchett
    • Appearance: gray metallic, bluish when oxidized
    • Category: transition metal
    • Melting Point: 2750 K
    • Boiling Point: 5017 K
    • Ox. State: -1, 2, 3, 4, 5
    • Bonding Type: metallic
    • Electronegativity: 1.6
    • Wiki Link: Source Link
    • Element Image: Image Link

    Niobium, formerly columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, ductile transition metal, which is often found in the pyrochlore mineral, the main commercial source for niobium, and columbite. The name comes from Greek mythology:Niobe, daughter of Tantalus since it is so similar to tantalum.

    Molybdenum

    DiscoveredState
    1778 Solid
    Atomic MassDensity
    95.951 10.28 g/L
    96 42 Mo
    ElectronsProtonsNeutrons
    42 42 54
    Electronic Configuration
    [Kr] 4d55s1
    • Discovered By: Carl Wilhelm Scheele
    • Appearance: gray metallic,
    • Category: transition metal
    • Melting Point: 2896 K
    • Boiling Point: 4912 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 2.16
    • Wiki Link: Source Link
    • Element Image: Image Link

    Molybdenum is a chemical element with symbol Mo and atomic number 42. The name is from Neo-Latin molybdaenum, from Ancient Greek Μόλυβδος molybdos, meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new entity from the mineral salts of other metals) in 1778 by Carl Wilhelm Scheele.

    Technetium

    DiscoveredState
    1937 Solid
    Atomic MassDensity
    98 11 g/L
    98 43 Tc
    ElectronsProtonsNeutrons
    43 43 55
    Electronic Configuration
    [Kr] 4d55s2
    • Discovered By: Emilio Segrè
    • Appearance: shiny gray metal
    • Category: transition metal
    • Melting Point: 2430 K
    • Boiling Point: 4538 K
    • Ox. State: -3, -1, 1, 2, 3, 4, 5, 6, 7
    • Bonding Type: metallic
    • Electronegativity: 1.9
    • Wiki Link: Source Link
    • Element Image: Image Link

    Technetium (/tɛkˈniːʃiəm/) is a chemical element with symbol Tc and atomic number 43. It is the element with the lowest atomic number in the periodic table that has no stable isotopes:every form of it is radioactive. Nearly all technetium is produced synthetically, and only minute amounts are found in nature.

    Ruthenium

    DiscoveredState
    1827 Solid
    Atomic MassDensity
    101.072 12.37 g/L
    101 44 Ru
    ElectronsProtonsNeutrons
    44 44 57
    Electronic Configuration
    [Kr] 4d75s1
    • Discovered By: Karl Ernst Claus
    • Appearance: silvery white metallic
    • Category: transition metal
    • Melting Point: 2607 K
    • Boiling Point: 4423 K
    • Ox. State: -2, 1, 2, 3, 4, 5, 6, 7, 8
    • Bonding Type: metallic
    • Electronegativity: 2.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Ruthenium is a chemical element with symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is inert to most other chemicals.

    Rhodium

    DiscoveredState
    1803 Solid
    Atomic MassDensity
    101.072 12.41 g/L
    103 45 Rh
    ElectronsProtonsNeutrons
    45 45 58
    Electronic Configuration
    [Kr] 4d85s1
    • Discovered By: William Hyde Wollaston
    • Appearance: silvery white metallic
    • Category: transition metal
    • Melting Point: 2237 K
    • Boiling Point: 3968 K
    • Ox. State: -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 2.28
    • Wiki Link: Source Link
    • Element Image: Image Link

    Rhodium is a chemical element with symbol Rh and atomic number 45. It is a rare, silvery-white, hard, and chemically inert transition metal. It is a member of the platinum group.

    Palladium

    DiscoveredState
    1803 Solid
    Atomic MassDensity
    106.421 12.023 g/L
    106 46 Pd
    ElectronsProtonsNeutrons
    46 46 60
    Electronic Configuration
    [Kr] 4d10
    • Discovered By: William Hyde Wollaston
    • Appearance: silvery white
    • Category: transition metal
    • Melting Point: 1828.05 K
    • Boiling Point: 3236 K
    • Ox. State: 2, 4
    • Bonding Type: metallic
    • Electronegativity: 2.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Palladium is a chemical element with symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas.

    Silver

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    107.86822 10.49 g/L
    108 47 Ag
    ElectronsProtonsNeutrons
    47 47 61
    Electronic Configuration
    [Kr] 4d105s1
    • Discovered By: unknown, before 5000 BC
    • Appearance: lustrous white metal
    • Category: transition metal
    • Melting Point: 1234.93 K
    • Boiling Point: 2435 K
    • Ox. State: 1, 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.93
    • Wiki Link: Source Link
    • Element Image: Image Link

    Silver is a chemical element with symbol Ag (Greek:άργυρος árguros, Latin:argentum, both from the Indo-European root *h₂erǵ- for "grey" or "shining") and atomic number 47. A soft, white, lustrous transition metal, it possesses the highest electrical conductivity, thermal conductivity and reflectivity of any metal. The metal occurs naturally in its pure, free form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite.

    Cadmium

    DiscoveredState
    1817 Solid
    Atomic MassDensity
    112.4144 8.65 g/L
    112 48 Cd
    ElectronsProtonsNeutrons
    48 48 64
    Electronic Configuration
    [Kr] 4d105s2
    • Discovered By: Karl Samuel Leberecht Hermann
    • Appearance: silvery bluish-gray metallic
    • Category: transition metal
    • Melting Point: 594.22 K
    • Boiling Point: 1040 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity: 1.69
    • Wiki Link: Source Link
    • Element Image: Image Link

    Cadmium is a chemical element with symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Like zinc, it prefers oxidation state +2 in most of its compounds and like mercury it shows a low melting point compared to transition metals.

    Indium

    DiscoveredState
    1863 Solid
    Atomic MassDensity
    114.8181 7.31 g/L
    115 49 In
    ElectronsProtonsNeutrons
    49 49 66
    Electronic Configuration
    [Kr] 4d105s25p1
    • Discovered By: Ferdinand Reich
    • Appearance: silvery lustrous gray
    • Category: post-transition metal
    • Melting Point: 429.7485 K
    • Boiling Point: 2345 K
    • Ox. State: 1, 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.78
    • Wiki Link: Source Link
    • Element Image: Image Link

    Indium is a chemical element with symbol In and atomic number 49. It is a post-transition metallic element that is rare in Earth's crust. The metal is very soft, malleable and easily fusible, with a melting point higher than sodium, but lower than lithium or tin.

    Tin

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    118.7107 7.365 g/L
    119 50 Sn
    ElectronsProtonsNeutrons
    50 50 69
    Electronic Configuration
    [Kr] 4d105s25p2
    • Discovered By: unknown, before 3500 BC
    • Appearance: silvery-white (beta, β) or gray (alpha, α)
    • Category: post-transition metal
    • Melting Point: 505.08 K
    • Boiling Point: 2875 K
    • Ox. State: -4, 2, 4
    • Bonding Type: metallic
    • Electronegativity: 1.96
    • Wiki Link: Source Link
    • Element Image: Image Link

    Tin is a chemical element with the symbol Sn (for Latin:stannum) and atomic number 50. It is a main group metal in group 14 of the periodic table. Tin shows a chemical similarity to both neighboring group-14 elements, germanium and lead, and has two possible oxidation states, +2 and the slightly more stable +4.

    Antimony

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    121.7601 6.697 g/L
    122 51 Sb
    ElectronsProtonsNeutrons
    51 51 71
    Electronic Configuration
    [Kr] 4d105s25p3
    • Discovered By: unknown, before 3000 BC
    • Appearance: silvery lustrous gray
    • Category: metalloid
    • Melting Point: 903.78 K
    • Boiling Point: 1908 K
    • Ox. State: -3, 3, 5
    • Bonding Type: metallic
    • Electronegativity: 2.05
    • Wiki Link: Source Link
    • Element Image: Image Link

    Antimony is a chemical element with symbol Sb (from Latin:stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was erroneously identified as lead upon its discovery.

    Tellurium

    DiscoveredState
    1782 Solid
    Atomic MassDensity
    127.603 6.24 g/L
    128 52 Te
    ElectronsProtonsNeutrons
    52 52 76
    Electronic Configuration
    [Kr] 4d105s25p4
    • Discovered By: Franz-Joseph Müller von Reichenstein
    • Appearance:
    • Category: metalloid
    • Melting Point: 722.66 K
    • Boiling Point: 1261 K
    • Ox. State: -2, 2, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 2.1
    • Wiki Link: Source Link
    • Element Image: Image Link

    Tellurium is a chemical element with symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur.

    Iodine

    DiscoveredState
    1811 Solid
    Atomic MassDensity
    126.904473 4.933 g/L
    127 53 I 2
    ElectronsProtonsNeutrons
    53 53 74
    Electronic Configuration
    [Kr] 4d105s25p5
    • Discovered By: Bernard Courtois
    • Appearance: lustrous metallic gray, violet as a gas
    • Category: halogen
    • Melting Point: 386.85 K
    • Boiling Point: 457.4 K
    • Ox. State: -1, 1, 3, 5, 7
    • Bonding Type: metallic
    • Electronegativity: 2.66
    • Wiki Link: Source Link
    • Element Image: Image Link

    Iodine is a chemical element with symbol I and atomic number 53. The name is from Greek ἰοειδής ioeidēs, meaning violet or purple, due to the color of iodine vapor. Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers.

    Xenon

    DiscoveredState
    1898 Gas
    Atomic MassDensity
    131.2936 5.894 g/L
    131 54 Xe
    ElectronsProtonsNeutrons
    54 54 77
    Electronic Configuration
    [Kr] 4d105s25p6
    • Discovered By: William Ramsay
    • Appearance: colorless gas
    • Category: noble gas
    • Melting Point: 161.4 K
    • Boiling Point: 165.051 K
    • Ox. State: 2, 4, 6, 8
    • Bonding Type: metallic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Xenon is a chemical element with symbol Xe and atomic number 54. It is a colorless, dense, odorless noble gas, that occurs in the Earth's atmosphere in trace amounts. Although generally unreactive, xenon can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesized.

    Caesium

    DiscoveredState
    1860 Solid
    Atomic MassDensity
    132.905451966 1.93 g/L
    133 55 Cs
    ElectronsProtonsNeutrons
    55 55 78
    Electronic Configuration
    [Xe] 6s1
    • Discovered By: Robert Bunsen
    • Appearance: silvery gold
    • Category: alkali metal
    • Melting Point: 301.7 K
    • Boiling Point: 944 K
    • Ox. State: 1
    • Bonding Type: metallic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Caesium or cesium is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28 °C (82 °F), which makes it one of only five elemental metals that are liquid at or near room temperature. Caesium is an alkali metal and has physical and chemical properties similar to those of rubidium and potassium.

    Barium

    DiscoveredState
    1808 Solid
    Atomic MassDensity
    137.3277 3.51 g/L
    137 56 Ba
    ElectronsProtonsNeutrons
    56 56 81
    Electronic Configuration
    [Xe] 6s2
    • Discovered By: Carl Wilhelm Scheele
    • Appearance: silvery gold
    • Category: alkaline earth metal
    • Melting Point: 1000 K
    • Boiling Point: 2118 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity: 0.89
    • Wiki Link: Source Link
    • Element Image: Image Link

    Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity barium is never found in nature as a free element.

    Lanthanum

    DiscoveredState
    1839 Solid
    Atomic MassDensity
    138.905477 6.162 g/L
    139 57 La
    ElectronsProtonsNeutrons
    57 57 82
    Electronic Configuration
    [Xe] 5d16s2
    • Discovered By: Carl Gustaf Mosander
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1193 K
    • Boiling Point: 3737 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.1
    • Wiki Link: Source Link
    • Element Image: Image Link

    Lanthanum is a soft, ductile, silvery-white metallic chemical element with symbol La and atomic number 57. It tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. It gave its name to the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table:it is also sometimes considered the first element of the 6th-period transition metals.

    Cerium

    DiscoveredState
    1803 Solid
    Atomic MassDensity
    140.1161 6.77 g/L
    140 58 Ce
    ElectronsProtonsNeutrons
    58 58 82
    Electronic Configuration
    [Xe] 4f15d16s2
    • Discovered By: Martin Heinrich Klaproth
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1068 K
    • Boiling Point: 3716 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.12
    • Wiki Link: Source Link
    • Element Image: Image Link

    Cerium is a chemical element with symbol Ce and atomic number 58. It is a soft, silvery, ductile metal which easily oxidizes in air. Cerium was named after the dwarf planet Ceres (itself named after the Roman goddess of agriculture).

    Praseodymium

    DiscoveredState
    1885 Solid
    Atomic MassDensity
    140.907662 6.77 g/L
    141 59 Pr
    ElectronsProtonsNeutrons
    59 59 82
    Electronic Configuration
    [Xe] 4f36s2
    • Discovered By: Carl Auer von Welsbach
    • Appearance: grayish white
    • Category: lanthanide
    • Melting Point: 1208 K
    • Boiling Point: 3403 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.13
    • Wiki Link: Source Link
    • Element Image: Image Link

    Praseodymium is a chemical element with symbol Pr and atomic number 59. Praseodymium is a soft, silvery, malleable and ductile metal in the lanthanide group. It is valued for its magnetic, electrical, chemical, and optical properties.

    Neodymium

    DiscoveredState
    1885 Solid
    Atomic MassDensity
    144.2423 7.01 g/L
    144 60 Nd
    ElectronsProtonsNeutrons
    60 60 84
    Electronic Configuration
    [Xe] 4f46s2
    • Discovered By: Carl Auer von Welsbach
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1297 K
    • Boiling Point: 3347 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.14
    • Wiki Link: Source Link
    • Element Image: Image Link

    Neodymium is a chemical element with symbol Nd and atomic number 60. It is a soft silvery metal that tarnishes in air. Neodymium was discovered in 1885 by the Austrian chemist Carl Auer von Welsbach.

    Promethium

    DiscoveredState
    1947 Solid
    Atomic MassDensity
    145 7.26 g/L
    145 61 Pm
    ElectronsProtonsNeutrons
    61 61 84
    Electronic Configuration
    [Xe] 4f56s2
    • Discovered By: Chien Shiung Wu
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1315 K
    • Boiling Point: 3273 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.13
    • Wiki Link: Source Link
    • Element Image: Image Link

    Promethium, originally prometheum, is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is one of only two such elements that are followed in the periodic table by elements with stable forms, a distinction shared with technetium. Chemically, promethium is a lanthanide, which forms salts when combined with other elements.

    Samarium

    DiscoveredState
    1853 Solid
    Atomic MassDensity
    150.362 7.52 g/L
    150 62 Sm
    ElectronsProtonsNeutrons
    62 62 88
    Electronic Configuration
    [Xe] 4f66s2
    • Discovered By: Lecoq de Boisbaudran
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1345 K
    • Boiling Point: 2173 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.17
    • Wiki Link: Source Link
    • Element Image: Image Link

    Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that readily oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3.

    Europium

    DiscoveredState
    1901 Solid
    Atomic MassDensity
    151.9641 5.264 g/L
    152 63 Eu
    ElectronsProtonsNeutrons
    63 63 89
    Electronic Configuration
    [Xe] 4f76s2
    • Discovered By: Eugène-Anatole Demarçay
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1099 K
    • Boiling Point: 1802 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water.

    Gadolinium

    DiscoveredState
    1880 Solid
    Atomic MassDensity
    157.253 7.9 g/L
    157 64 Gd
    ElectronsProtonsNeutrons
    64 64 93
    Electronic Configuration
    [Xe] 4f75d16s2
    • Discovered By: Jean Charles Galissard de Marignac
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1585 K
    • Boiling Point: 3273 K
    • Ox. State: 1, 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Gadolinium is a chemical element with symbol Gd and atomic number 64. It is a silvery-white, malleable and ductile rare-earth metal. It is found in nature only in combined (salt) form.

    Terbium

    DiscoveredState
    1843 Solid
    Atomic MassDensity
    158.925352 8.23 g/L
    159 65 Tb
    ElectronsProtonsNeutrons
    65 65 94
    Electronic Configuration
    [Xe] 4f96s2
    • Discovered By: Carl Gustaf Mosander
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1629 K
    • Boiling Point: 3396 K
    • Ox. State: 1, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Terbium is a chemical element with symbol Tb and atomic number 65. It is a silvery-white rare earth metal that is malleable, ductile and soft enough to be cut with a knife. Terbium is never found in nature as a free element, but it is contained in many minerals, including cerite, gadolinite, monazite, xenotime and euxenite.

    Dysprosium

    DiscoveredState
    1886 Solid
    Atomic MassDensity
    162.5001 8.54 g/L
    163 66 Dy
    ElectronsProtonsNeutrons
    66 66 97
    Electronic Configuration
    [Xe] 4f96s2
    • Discovered By: Lecoq de Boisbaudran
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1680 K
    • Boiling Point: 2840 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.22
    • Wiki Link: Source Link
    • Element Image: Image Link

    Dysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster. Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime.

    Holmium

    DiscoveredState
    1878 Solid
    Atomic MassDensity
    164.930332 8.79 g/L
    165 67 Ho
    ElectronsProtonsNeutrons
    67 67 98
    Electronic Configuration
    [Xe] 4f116s2
    • Discovered By: Marc Delafontaine
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1734 K
    • Boiling Point: 2873 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.23
    • Wiki Link: Source Link
    • Element Image: Image Link

    Holmium is a chemical element with symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare earth element. Holmium was discovered by Swedish chemist Per Theodor Cleve.

    Erbium

    DiscoveredState
    1842 Solid
    Atomic MassDensity
    167.2593 9.066 g/L
    167 68 Er
    ElectronsProtonsNeutrons
    68 68 99
    Electronic Configuration
    [Xe] 4f126s2
    • Discovered By: Carl Gustaf Mosander
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1802 K
    • Boiling Point: 3141 K
    • Ox. State: 3
    • Bonding Type: metallic
    • Electronegativity: 1.24
    • Wiki Link: Source Link
    • Element Image: Image Link

    Erbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements on Earth. As such, it is a rare earth element which is associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden, where yttrium, ytterbium, and terbium were discovered.

    Thulium

    DiscoveredState
    1879 Solid
    Atomic MassDensity
    168.934222 9.32 g/L
    169 69 Tm
    ElectronsProtonsNeutrons
    69 69 100
    Electronic Configuration
    [Xe] 4f136s2
    • Discovered By: Per Teodor Cleve
    • Appearance: silvery gray
    • Category: lanthanide
    • Melting Point: 1818 K
    • Boiling Point: 2223 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.25
    • Wiki Link: Source Link
    • Element Image: Image Link

    Thulium is a chemical element with symbol Tm and atomic number 69. It is the thirteenth and antepenultimate (third-last) element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds.

    Ytterbium

    DiscoveredState
    1878 Solid
    Atomic MassDensity
    173.0451 6.9 g/L
    173 70 Yb
    ElectronsProtonsNeutrons
    70 70 103
    Electronic Configuration
    [Xe] 4f146s2
    • Discovered By: Jean Charles Galissard de Marignac
    • Appearance: silvery gray
    • Category: lanthanide
    • Melting Point: 1097 K
    • Boiling Point: 1469 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.1
    • Wiki Link: Source Link
    • Element Image: Image Link

    Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, seen in its oxide, halides and other compounds.

    Lutetium

    DiscoveredState
    1907 Solid
    Atomic MassDensity
    174.96681 9.841 g/L
    175 71 Lu
    ElectronsProtonsNeutrons
    71 71 104
    Electronic Configuration
    [Xe] 4f145d16s2
    • Discovered By: Georges Urbain
    • Appearance: silvery white
    • Category: lanthanide
    • Melting Point: 1925 K
    • Boiling Point: 3675 K
    • Ox. State: 3
    • Bonding Type: metallic
    • Electronegativity: 1.27
    • Wiki Link: Source Link
    • Element Image: Image Link

    Lutetium is a chemical element with symbol Lu and atomic number 71. It is a silvery white metal, which resists corrosion in dry, but not in moist air. It is considered the first element of the 6th-period transition metals and the last element in the lanthanide series, and is traditionally counted among the rare earths.

    Hafnium

    DiscoveredState
    1923 Solid
    Atomic MassDensity
    178.492 13.31 g/L
    178 72 Hf
    ElectronsProtonsNeutrons
    72 72 106
    Electronic Configuration
    [Xe] 4f145d26s2
    • Discovered By: Dirk Coster
    • Appearance: steel gray
    • Category: transition metal
    • Melting Point: 2506 K
    • Boiling Point: 4876 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Hafnium is a chemical element with symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals. Its existence was predicted by Dmitri Mendeleev in 1869, though it was not identified until 1923, making it the penultimate stable element to be discovered (rhenium was identified two years later).

    Tantalum

    DiscoveredState
    1802 Solid
    Atomic MassDensity
    180.947882 16.69 g/L
    181 73 Ta
    ElectronsProtonsNeutrons
    73 73 108
    Electronic Configuration
    [Xe] 4f145d36s2
    • Discovered By: Anders Gustaf Ekeberg
    • Appearance: gray blue
    • Category: transition metal
    • Melting Point: 3290 K
    • Boiling Point: 5731 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.5
    • Wiki Link: Source Link
    • Element Image: Image Link

    Tantalum is a chemical element with symbol Ta and atomic number 73. Previously known as tantalium, its name comes from Tantalus, an antihero from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.

    Tungsten

    DiscoveredState
    1783 Solid
    Atomic MassDensity
    183.841 19.25 g/L
    184 74 W
    ElectronsProtonsNeutrons
    74 74 110
    Electronic Configuration
    [Xe] 4f145d46s2
    • Discovered By: Carl Wilhelm Scheele
    • Appearance: grayish white, lustrous
    • Category: transition metal
    • Melting Point: 3695 K
    • Boiling Point: 6203 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 2.36
    • Wiki Link: Source Link
    • Element Image: Image Link

    Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten, which directly translates to heavy stone. Its name in Swedish is volfram, however, in order to distinguish it from scheelite, which in Swedish is alternatively named tungsten.

    Rhenium

    DiscoveredState
    1925 Solid
    Atomic MassDensity
    186.2071 21.02 g/L
    186 75 Re
    ElectronsProtonsNeutrons
    75 75 111
    Electronic Configuration
    [Xe] 4f145d56s2
    • Discovered By: Masataka Ogawa
    • Appearance: silvery-grayish
    • Category: transition metal
    • Melting Point: 3459 K
    • Boiling Point: 5869 K
    • Ox. State: -3, -1, 1, 2, 3, 4, 5, 6, 7
    • Bonding Type: metallic
    • Electronegativity: 1.9
    • Wiki Link: Source Link
    • Element Image: Image Link

    Rhenium is a chemical element with symbol Re and atomic number 75. It is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust.

    Osmium

    DiscoveredState
    1803 Solid
    Atomic MassDensity
    190.233 22.59 g/L
    187 76 Os
    ElectronsProtonsNeutrons
    76 76 111
    Electronic Configuration
    [Xe] 4f145d66s2
    • Discovered By: Smithson Tennant
    • Appearance: silvery, blue cast
    • Category: transition metal
    • Melting Point: 3306 K
    • Boiling Point: 5285 K
    • Ox. State: -2, -1, 1, 2, 3, 4, 5, 6, 7, 8
    • Bonding Type: metallic
    • Electronegativity: 2.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Osmium (from Greek osme (ὀσμή) meaning "smell") is a chemical element with symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3.

    Iridium

    DiscoveredState
    1803 Solid
    Atomic MassDensity
    192.2173 22.56 g/L
    192 77 Ir
    ElectronsProtonsNeutrons
    77 77 115
    Electronic Configuration
    [Xe] 4f145d76s2
    • Discovered By: Smithson Tennant
    • Appearance: silvery white
    • Category: transition metal
    • Melting Point: 2719 K
    • Boiling Point: 4403 K
    • Ox. State: -3, -1, 1, 2, 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 2.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Iridium is a chemical element with symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium) based on measured density, although calculations involving the space lattices of the elements show that iridium is denser. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. Although only certain molten salts and halogens are corrosive to solid iridium, finely divided iridium dust is much more reactive and can be flammable.

    Platinum

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    195.0849 21.45 g/L
    195 78 Pt
    ElectronsProtonsNeutrons
    78 78 117
    Electronic Configuration
    [Xe] 4f145d96s1
    • Discovered By: Antonio de Ulloa
    • Appearance: silvery white
    • Category: transition metal
    • Melting Point: 2041.4 K
    • Boiling Point: 4098 K
    • Ox. State: 2, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 2.28
    • Wiki Link: Source Link
    • Element Image: Image Link

    Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, gray-white transition metal. Its name is derived from the Spanish term platina, which is literally translated into "little silver".

    Gold

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    196.9665695 19.3 g/L
    197 79 Au
    ElectronsProtonsNeutrons
    79 79 118
    Electronic Configuration
    [Xe] 4f145d106s1
    • Discovered By: Middle East
    • Appearance: metallic yellow
    • Category: transition metal
    • Melting Point: 1337.33 K
    • Boiling Point: 3243 K
    • Ox. State: -1, 1, 2, 3, 5
    • Bonding Type: metallic
    • Electronegativity: 2.54
    • Wiki Link: Source Link
    • Element Image: Image Link

    Gold is a chemical element with symbol Au (from Latin:aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable and ductile metal. Chemically, gold is a transition metal and a group 11 element.

    Mercury

    DiscoveredState
    Ancient Liquid
    Atomic MassDensity
    200.5923 13.534 g/L
    201 80 Hg
    ElectronsProtonsNeutrons
    80 80 121
    Electronic Configuration
    [Xe] 4f145d106s2
    • Discovered By: unknown, before 2000 BCE
    • Appearance: silvery
    • Category: transition metal
    • Melting Point: 234.321 K
    • Boiling Point: 629.88 K
    • Ox. State: 1, 2, 4
    • Bonding Type: metallic
    • Electronegativity: 2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Mercury is a chemical element with symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum (/haɪˈdrɑːrdʒərəm/). A heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure; the only other element that is liquid under these conditions is bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.

    Thallium

    DiscoveredState
    1861 Solid
    Atomic MassDensity
    204.38 11.85 g/L
    204 81 Tl
    ElectronsProtonsNeutrons
    81 81 123
    Electronic Configuration
    [Xe] 4f145d106s26p1
    • Discovered By: William Crookes
    • Appearance: silvery white
    • Category: post-transition metal
    • Melting Point: 577 K
    • Boiling Point: 1746 K
    • Ox. State: 1, 3
    • Bonding Type: metallic
    • Electronegativity: 2.04
    • Wiki Link: Source Link
    • Element Image: Image Link

    Thallium is a chemical element with symbol Tl and atomic number 81. This soft gray post-transition metal is not found free in nature. When isolated, it resembles tin, but discolors when exposed to air.

    Lead

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    207.21 11.34 g/L
    208 82 Pb
    ElectronsProtonsNeutrons
    82 82 126
    Electronic Configuration
    [Xe] 4f145d106s26p2
    • Discovered By: Middle East
    • Appearance: metallic gray
    • Category: post-transition metal
    • Melting Point: 600.61 K
    • Boiling Point: 2022 K
    • Ox. State: -4, 2, 4
    • Bonding Type: metallic
    • Electronegativity: 2.33
    • Wiki Link: Source Link
    • Element Image: Image Link

    Lead (/lɛd/) is a chemical element in the carbon group with symbol Pb (from Latin:plumbum) and atomic number 82. Lead is a soft, malleable and heavy post-transition metal. Metallic lead has a bluish-white color after being freshly cut, but it soon tarnishes to a dull grayish color when exposed to air.

    Bismuth

    DiscoveredState
    Ancient Solid
    Atomic MassDensity
    208.980401 9.78 g/L
    206 83 Bi
    ElectronsProtonsNeutrons
    83 83 123
    Electronic Configuration
    [Xe] 4f145d106s26p3
    • Discovered By: Claude François Geoffroy
    • Appearance: lustrous silver
    • Category: post-transition metal
    • Melting Point: 544.7 K
    • Boiling Point: 1837 K
    • Ox. State: -3, 3, 5
    • Bonding Type: metallic
    • Electronegativity: 2.02
    • Wiki Link: Source Link
    • Element Image: Image Link

    Bismuth is a chemical element with symbol Bi and atomic number 83. Bismuth, a pentavalent post-transition metal, chemically resembles arsenic and antimony. Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores.

    Polonium

    DiscoveredState
    1898 Solid
    Atomic MassDensity
    209 9.196 g/L
    209 84 Po
    ElectronsProtonsNeutrons
    84 84 125
    Electronic Configuration
    [Xe] 4f145d106s26p4
    • Discovered By: Pierre Curie
    • Appearance: silvery
    • Category: post-transition metal
    • Melting Point: 527 K
    • Boiling Point: 1235 K
    • Ox. State: -2, 2, 4, 6
    • Bonding Type: metallic
    • Electronegativity: 2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Polonium is a chemical element with symbol Po and atomic number 84, discovered in 1898 by Marie Curie and Pierre Curie. A rare and highly radioactive element with no stable isotopes, polonium is chemically similar to bismuth and tellurium, and it occurs in uranium ores. Applications of polonium are few.

    Astatine

    DiscoveredState
    1940 Solid
    Atomic MassDensity
    210 26.35 g/L
    210 85 At
    ElectronsProtonsNeutrons
    85 85 125
    Electronic Configuration
    [Xe] 4f145d106s26p5
    • Discovered By: Dale R. Corson
    • Appearance: silvery
    • Category: metalloid
    • Melting Point: 575 K
    • Boiling Point: 610 K
    • Ox. State: -1, 1, 3, 5
    • Bonding Type: metallic
    • Electronegativity: 2.2
    • Wiki Link: Source Link
    • Element Image: Image Link

    Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85. It occurs on Earth as the decay product of various heavier elements. All its isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours.

    Radon

    DiscoveredState
    1900 Gas
    Atomic MassDensity
    222 9.73 g/L
    222 86 Rn
    ElectronsProtonsNeutrons
    86 86 136
    Electronic Configuration
    [Xe] 4f145d106s26p6
    • Discovered By: Friedrich Ernst Dorn
    • Appearance: colorless gas
    • Category: noble gas
    • Melting Point: 202 K
    • Boiling Point: 211.5 K
    • Ox. State: 2
    • Bonding Type: metallic
    • Electronegativity:
    • Wiki Link: Source Link
    • Element Image: Image Link

    Radon is a chemical element with symbol Rn and atomic number 86. It is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as a decay product of radium. Its most stable isotope, 222Rn, has a half-life of 3.8 days.

    Francium

    DiscoveredState
    1939 Solid
    Atomic MassDensity
    223 1.87 g/L
    223 87 Fr
    ElectronsProtonsNeutrons
    87 87 136
    Electronic Configuration
    [Rn] 7s1
    • Discovered By: Marguerite Perey
    • Appearance:
    • Category: alkali metal
    • Melting Point: 300 K
    • Boiling Point: 950 K
    • Ox. State: 1
    • Bonding Type: metallic
    • Electronegativity: 0.7
    • Wiki Link: Source Link
    • Element Image: Image Link

    Francium is a chemical element with symbol Fr and atomic number 87. It used to be known as eka-caesium and actinium K. It is the second-least electronegative element, behind only caesium. Francium is a highly radioactive metal that decays into astatine, radium, and radon.

    Radium

    DiscoveredState
    1898 Solid
    Atomic MassDensity
    226 5.5 g/L
    226 88 Ra
    ElectronsProtonsNeutrons
    88 88 138
    Electronic Configuration
    [Rn] 7s2
    • Discovered By: Pierre Curie
    • Appearance:
    • Category: alkaline earth metal
    • Melting Point: 1233 K
    • Boiling Point: 2010 K
    • Ox. State: 3
    • Bonding Type: metallic
    • Electronegativity: 0.9
    • Wiki Link: Source Link
    • Element Image: Image Link

    Radium is a chemical element with symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is almost colorless, but it readily combines with nitrogen (rather than oxygen) on exposure to air, forming a black surface layer of radium nitride (Ra3N2).

    Actinium

    DiscoveredState
    1898 Solid
    Atomic MassDensity
    226 10 g/L
    227 89 Ac
    ElectronsProtonsNeutrons
    89 89 138
    Electronic Configuration
    [Rn] 6d17s2
    • Discovered By: Friedrich Oskar Giesel
    • Appearance:
    • Category: actinide
    • Melting Point: 1500 K
    • Boiling Point: 3500 K
    • Ox. State: 3
    • Bonding Type: metallic
    • Electronegativity: 1.1
    • Wiki Link: Source Link
    • Element Image: Image Link

    Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated. Polonium, radium and radon were observed before actinium, but they were not isolated until 1902.

    Thorium

    DiscoveredState
    1828 Solid
    Atomic MassDensity
    232.03774 11.724 g/L
    232 90 Th
    ElectronsProtonsNeutrons
    90 90 142
    Electronic Configuration
    [Rn] 6d27s2
    • Discovered By: Jöns Jakob Berzelius
    • Appearance: silvery
    • Category: actinide
    • Melting Point: 2023 K
    • Boiling Point: 5061 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Thorium is a chemical element with symbol Th and atomic number 90. A radioactive actinide metal, thorium is one of only two significantly radioactive elements that still occur naturally in large quantities as a primordial element (the other being uranium). It was discovered in 1828 by the Norwegian Reverend and amateur mineralogist Morten Thrane Esmark and identified by the Swedish chemist Jöns Jakob Berzelius, who named it after Thor, the Norse god of thunder.

    Protactinium

    DiscoveredState
    1913 Solid
    Atomic MassDensity
    231.035882 15.37 g/L
    231 91 Pa
    ElectronsProtonsNeutrons
    91 91 140
    Electronic Configuration
    [Rn] 5f2 6d1 7s2
    • Discovered By: William Crookes
    • Appearance: bright, silvery metallic luster
    • Category: actinide
    • Melting Point: 1841 K
    • Boiling Point: 4300 K
    • Ox. State: 3, 4, 5
    • Bonding Type: metallic
    • Electronegativity: 1.5
    • Wiki Link: Source Link
    • Element Image: Image Link

    Protactinium is a chemical element with symbol Pa and atomic number 91. It is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. It forms various chemical compounds where protactinium is usually present in the oxidation state +5, but can also assume +4 and even +2 or +3 states.

    Uranium

    DiscoveredState
    1789 Solid
    Atomic MassDensity
    238.028913 19.1 g/L
    238 92 U
    ElectronsProtonsNeutrons
    92 92 146
    Electronic Configuration
    [Rn] 5f3 6d1 7s2
    • Discovered By: Martin Heinrich Klaproth
    • Appearance:
    • Category: actinide
    • Melting Point: 1405.3 K
    • Boiling Point: 4404 K
    • Ox. State: 3, 4, 5, 6
    • Bonding Type: metallic
    • Electronegativity: 1.38
    • Wiki Link: Source Link
    • Element Image: Image Link

    Uranium is a chemical element with symbol U and atomic number 92. It is a silvery-white metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.

    Neptunium

    DiscoveredState
    1940 Solid
    Atomic MassDensity
    237 20.45 g/L
    237 93 Np
    ElectronsProtonsNeutrons
    93 93 144
    Electronic Configuration
    [Rn] 5f3 6d1 7s2
    • Discovered By: Edwin McMillan
    • Appearance:
    • Category: actinide
    • Melting Point: 912 K
    • Boiling Point: 4447 K
    • Ox. State: 3, 4, 5, 6, 7
    • Bonding Type: metallic
    • Electronegativity: 1.36
    • Wiki Link: Source Link
    • Element Image: Image Link

    Neptunium is a chemical element with symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. Its position in the periodic table just after uranium, named after the planet Uranus, led to it being named after Neptune, the next planet beyond Uranus.

    Plutonium

    DiscoveredState
    1940 Solid
    Atomic MassDensity
    244 19.816 g/L
    333 94 Pu
    ElectronsProtonsNeutrons
    94 94 239
    Electronic Configuration
    [Rn] 5f6 7s2
    • Discovered By: Glenn T. Seaborg
    • Appearance: silvery white
    • Category: actinide
    • Melting Point: 912.5 K
    • Boiling Point: 3505 K
    • Ox. State: 3, 4, 5, 6, 7
    • Bonding Type: metallic
    • Electronegativity: 1.28
    • Wiki Link: Source Link
    • Element Image: Image Link

    Plutonium is a transuranic radioactive chemical element with symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.

    Americium

    DiscoveredState
    1944 Solid
    Atomic MassDensity
    243 12 g/L
    243 95 Am
    ElectronsProtonsNeutrons
    95 95 148
    Electronic Configuration
    [Rn] 5f7 7s2
    • Discovered By: Glenn T. Seaborg
    • Appearance: silvery white
    • Category: actinide
    • Melting Point: 1449 K
    • Boiling Point: 2880 K
    • Ox. State: 3, 4, 5, 6, 7
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Americium is a radioactive transuranic chemical element with symbol Am and atomic number 95. This member of the actinide series is located in the periodic table under the lanthanide element europium, and thus by analogy was named after the Americas. Americium was first produced in 1944 by the group of Glenn T.Seaborg from Berkeley, California, at the metallurgical laboratory of University of Chicago.

    Curium

    DiscoveredState
    1944 Solid
    Atomic MassDensity
    247 13.51 g/L
    247 96 Cm
    ElectronsProtonsNeutrons
    96 96 151
    Electronic Configuration
    [Rn] 5f7 6d1 7s2
    • Discovered By: Glenn T. Seaborg
    • Appearance: silvery metallic
    • Category: actinide
    • Melting Point: 1613 K
    • Boiling Point: 3383 K
    • Ox. State: 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Curium is a transuranic radioactive chemical element with symbol Cm and atomic number 96. This element of the actinide series was named after Marie and Pierre Curie – both were known for their research on radioactivity. Curium was first intentionally produced and identified in July 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley.

    Berkelium

    DiscoveredState
    1949 Solid
    Atomic MassDensity
    247 14.78 g/L
    247 97 Bk
    ElectronsProtonsNeutrons
    97 97 150
    Electronic Configuration
    [Rn] 5f9 7s2
    • Discovered By: Lawrence Berkeley National Laboratory
    • Appearance: silvery
    • Category: actinide
    • Melting Point: 1259 K
    • Boiling Point: 2900 K
    • Ox. State: 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Berkelium is a transuranic radioactive chemical element with symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series. It is named after the city of Berkeley, California, the location of the University of California Radiation Laboratory where it was discovered in December 1949.

    Californium

    DiscoveredState
    1950 Solid
    Atomic MassDensity
    251 15.1 g/L
    251 98 Cf
    ElectronsProtonsNeutrons
    98 98 153
    Electronic Configuration
    [Rn] 5f10 7s2
    • Discovered By: Lawrence Berkeley National Laboratory
    • Appearance: silvery
    • Category: actinide
    • Melting Point: 1173 K
    • Boiling Point: 1743 K
    • Ox. State: 2, 3, 4
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Californium is a radioactive metallic chemical element with symbol Cf and atomic number 98. The element was first made in 1950 at the University of California Radiation Laboratory in Berkeley, by bombarding curium with alpha particles (helium-4 ions). It is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium).

    Einsteinium

    DiscoveredState
    1950 Solid
    Atomic MassDensity
    252 8.84 g/L
    252 99 Es
    ElectronsProtonsNeutrons
    99 99 153
    Electronic Configuration
    [Rn] 5f11 7s2
    • Discovered By: Lawrence Berkeley National Laboratory
    • Appearance: silvery
    • Category: actinide
    • Melting Point: 1133 K
    • Boiling Point: 1269 K
    • Ox. State: 2, 3
    • Bonding Type: metallic
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Einsteinium is a synthetic element with symbol Es and atomic number 99. It is the seventh transuranic element, and an actinide. Einsteinium was discovered as a component of the debris of the first hydrogen bomb explosion in 1952, and named after Albert Einstein.

    Fermium

    DiscoveredState
    1952 Solid
    Atomic MassDensity
    257 g/L
    257 100 Fm
    ElectronsProtonsNeutrons
    100 100 157
    Electronic Configuration
    [Rn] 5f12 7s2
    • Discovered By: Lawrence Berkeley National Laboratory
    • Appearance:
    • Category: actinide
    • Melting Point: 1800 K
    • Boiling Point: K
    • Ox. State: 2, 3
    • Bonding Type:
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Fermium is a synthetic element with symbol Fm and atomic number 100. It is a member of the actinide series. It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities, although pure fermium metal has not yet been prepared.

    Mendelevium

    DiscoveredState
    1955 Solid
    Atomic MassDensity
    258 g/L
    258 101 Md
    ElectronsProtonsNeutrons
    101 101 157
    Electronic Configuration
    [Rn] 5f13 7s2
    • Discovered By: Lawrence Berkeley National Laboratory
    • Appearance:
    • Category: actinide
    • Melting Point: 1100 K
    • Boiling Point: K
    • Ox. State: 2, 3
    • Bonding Type:
    • Electronegativity: 1.3
    • Wiki Link: Source Link
    • Element Image: Image Link

    Mendelevium is a synthetic element with chemical symbol Md (formerly Mv) and atomic number 101. A metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities through neutron bombardment of lighter elements. It is the antepenultimate actinide and the ninth transuranic element.

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