98 Cf Californio 251,0 u

Californio

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Período
7
Grupo
—
Bloque
f-bloque
Fase (STP)
Solid

El californio es un potente emisor de neutrones empleado en el arranque de reactores nucleares y en medidores de humedad. Es una de las sustancias más caras de la Tierra.

Acerca de Californio

Californium is among the most expensive substances ever prepared, a consequence of the reactor time and processing needed to accumulate even microgram quantities. The element holds atomic number 98 and a relative atomic mass of 251.0, with the configuration [Rn] 5f10 7s2 and an electronegativity of 1.3, and it is a solid at standard temperature and pressure. What distinguishes it from its neighbours is the intensity with which it emits neutrons through spontaneous fission. That single property supports its two working applications: starting up nuclear reactors, where a reliable neutron source is required to initiate a controlled chain reaction, and moisture gauges, in which neutrons scattered by hydrogen reveal water content in soil or industrial material.

Propiedades físicas

Masa atómica 251.0 u
Fase a STP Solid

Propiedades electrónicas

Electronegatividad 1.3

Configuración electrónica

Configuración [Rn] 5f¹⁰ 7s²

Configuración de capas electrónicas

Configuración de capas electrónicas de Californio Cf 2e⁻ 8e⁻ 18e⁻ 32e⁻ 28e⁻ 8e⁻ 2e⁻
Estructura de capas electrónicas de Californio: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 28
6 (P) 8
7 (Q) 2

Posición en la tabla periódica

Posición de Californio en la tabla periódica Cf

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Más Actínido

89 Ac Actinio 90 Th Torio 91 Pa Protactinio 92 U Uranio 93 Np Neptunio 94 Pu Plutonio 95 Am Americio 96 Cm Curio 97 Bk Berkelio 99 Es Einstenio

Frequently Asked Questions

What is Californio?
Californio (Cf) is a chemical element with atomic number 98. It is a solid at standard temperature and pressure, classified as a actínido.
What are the key properties of Californio?
Californio has an atomic mass of 251.0 u.
What is the electron configuration of Californio?
The electron configuration of Californio is [Rn] 5f10 7s2. It is in the f-block of the periodic table.
What is the electronegativity of Californio?
Californio has an electronegativity of 1.3 on the Pauling scale.