Molybdenum vs Tungsten

← Back to Periodic Table
PropertyMo MolybdenumW Tungsten
Atomic number4274
SymbolMoW
NameMolybdenumTungsten
Categorytransition-metaltransition-metal
Standard Atomic Weight95.95 u183.84 u
Period56
Group66
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s14d5[Xe]6s24f145d4
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4, 5, 6][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)2.162.36
Electron affinity0.744 eV0.815 eV
Density1.020000e+4 kg/m³1.930000e+4 kg/m³
Melting point2622.85 °C3421.85 °C
Boiling point4638.85 °C5554.85 °C
Discovery year17781781