Hafnium

Symbol 符号

Hf

Atomic number 原子序数

72

Atomic mass 原子质量	178.49		Thermal conductivity 热导率	0.330
Atomic radius 原子半径	2.16		Covalent radius 共价半径	1.44
Density 密度	13.1		Atomic volume 原子体积	13.6
Melting point 熔点	2500		Oxidation states 氧化态	4
Boiling point 沸点	4876		Stable isotopes 稳定同位素	6
Heat of vapor. 汽化热	575		Electronegativity 电负性	1.3
Heat of fusion 熔化热	24.06		First ionization 第一电离能	6.65
Specific heat 比热容	0.14		Electrical conduct. 电导率	...

Electron configuration 电子排布

Hafnium

Hafnium is a transition metal similar to zirconium. Natural zirconium minerals usually contain a few percent of hafnium. Lithium and sodium are found with either zirconium, titanium or hafnium in the mineral zektzerite

Hafnium was discovered in 1923, but has found little application.

Hafnium Nuclear Data