NO. 042Transition

Mo

Molybdenum

Molybdenum is a hard metal with one of the highest melting points, widely used in high-strength steel alloys and catalysts.

Crystal Structure

Body-centered cubic (bcc)

Atomic Mass95.95 u

Density10.28 g/cm³

Melting Point2896 K

Boiling Point4912 K

Atomic Radius139 pm

Electronegativity2.16

Ionization Energy684 kJ/mol

Electron Affinity72 kJ/mol

Bonding TypeMetallic

Oxidation States2, 4, 6

Acid/BaseBasic

ReactivityLow

Electron Configuration

[Kr] 4d5 5s1

Discovered ByCarl Wilhelm Scheele

Year1778

Known Isotopes

Mo-92Mo-94Mo-95Mo-96Mo-97Mo-98Mo-100