72 Hf Hafnio 178,49 u

Hafnio

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Período
6
Grupo
4
Bloque
d-bloque
Fase (STP)
Solid

El hafnio es un metal de transición resistente a la corrosión empleado en barras de control de reactores nucleares. Es químicamente similar al circonio.

Acerca de Hafnio

Hafnium (Hf) is a lustrous, corrosion-resistant transition metal, element 72, opening group 4 of period 6 in the d-block. It has an atomic mass of 178.49, the electron configuration [Xe] 4f¹⁴ 5d² 6s², and a Pauling electronegativity of 1.3. Chemically it closely resembles zirconium, the element directly above it, and the two are notoriously difficult to separate. Hafnium's strong absorption of neutrons makes it well suited to the control rods that regulate nuclear reactors, particularly in naval propulsion. The metal is solid at standard conditions and forms a very stable oxide used in advanced semiconductor insulation.

Propiedades físicas

Masa atómica 178.49 u
Fase a STP Solid

Propiedades electrónicas

Electronegatividad 1.3

Configuración electrónica

Configuración [Xe] 4f¹⁴ 5d² 6s²

Configuración de capas electrónicas

Configuración de capas electrónicas de Hafnio Hf 2e⁻ 8e⁻ 18e⁻ 32e⁻ 10e⁻ 2e⁻
Estructura de capas electrónicas de Hafnio: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 10
6 (P) 2

Posición en la tabla periódica

Posición de Hafnio en la tabla periódica Hf

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Más Metal de Transición

21 Sc Escandio 22 Ti Titanio 23 V Vanadio 24 Cr Cromo 25 Mn Manganeso 26 Fe Hierro 27 Co Cobalto 28 Ni Níquel 29 Cu Cobre 30 Zn Cinc

Frequently Asked Questions

What is Hafnio?
Hafnio (Hf) is a chemical element with atomic number 72. It is a solid at standard temperature and pressure, classified as a metal de transición.
What are the key properties of Hafnio?
Hafnio has an atomic mass of 178.49 u.
What is the electron configuration of Hafnio?
The electron configuration of Hafnio is [Xe] 4f14 5d2 6s2. It is in the d-block of the periodic table.
What is the electronegativity of Hafnio?
Hafnio has an electronegativity of 1.3 on the Pauling scale.