Molybdenum

Symbol 符号

Mo 摩

Atomic number 原子序数

42

Atomic mass 原子质量	95.94		Thermal conductivity 热导率	1.38
Atomic radius 原子半径	2.01		Covalent radius 共价半径	1.30
Density 密度	10.2		Atomic volume 原子体积	9.4
Melting point 熔点	2890		Oxidation states 氧化态	6,5,4,3,2
Boiling point 沸点	4912		Stable isotopes 稳定同位素	7
Heat of vapor. 汽化热	598.0		Electronegativity 电负性	2.16
Heat of fusion 熔化热	32.0		First ionization 第一电离能	7.099
Specific heat 比热容	0.25		Electrical conduct. 电导率	...

Electron configuration 电子排布

Molybdenum

Molybdenum is a metal which has important use as a constituent of alloy steels. Molybdenum makes them stronger and more corrosion-resistant. Molybdenum is also used in pigments and as a catalyst in petroleum refining.

It is found principally in the sulfide mineral molybdenite, MoS₂, of which there is an enormous deposit near Climax, Colorado. The mineral forms in shiny black plates, similar to graphite in appearance. Other mineral forms are Powellite and Wulfenite.

Molybdenum is an exception to the general order of filling of electron orbitals like chromium in the previous period of the same column of the periodic table. It fills five 4d states before it fills the second 5s state. Just those levels outside a krypton core are shown.

Molybdenum Nuclear Data