MOLYBDENUM

 MOLYBDENUM (42) (Solid)  99(66.02 hours)B-

Atomic radius:2.01Deg. A (Quantum mech. value for free atom)

Atomic volume:9.4 cm(3)/mol at 300Deg. Kelvin

Atomic weight:95.94 (Based on Carbon 12)

Boiling point:4912Deg. Kelvin

Covalent radius:1.3 Deg. A

Crystal structure:Cubic,face centered

Density:10.2 g/cm(3) at 300Deg. Kelvin

Electrical conductivity:.187 10(x6) Ohm(x.1) cm(x.1) at 293Deg. Kelvin

Electron configuration:1s(2)2s(2)p(6)3s(2)p(6)3d(10)4s(2)p(6)4d(5)5s(1)

Electronegativity:2.16 (Pauling's)

First ionization potential:7.099 V

Heat of fusion:32 kJ/mol at melting point

Heat of vaporization:598 kJ/mol at boiling point

Melting point:2890Deg. Kelvin

Oxidation states:6,5,4,3,2,very acidic(6)

Specific heat capacity:.25 Jg(x.1) K(x.1) at 300Deg. Kelvin

Thermal conductivity:1.38 W cm(x.1) K(x.1) at 300Deg. Kelvin

Description:A metallic element that resembles chromium and tungsten in it's

many properties,is especially used in strengthening and hardening steel, and is

a trace element in plant and animal metabolism.

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