Oxygen vs Molybdenum

← Back to Periodic Table
PropertyO OxygenMo Molybdenum
Atomic number842
SymbolOMo
NameOxygenMolybdenum
Categorynonmetaltransition-metal
Standard Atomic Weight15.9994 u95.95 u
Period25
Group166
Blockps
Phase at STPgassolid
Electron configuration[He]2s22p4[Kr]5s14d5
Oxidation states[-2, -1, 0, 1, 2][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)3.442.16
Electron affinity1.4611 eV0.744 eV
Density1.429 kg/m³1.020000e+4 kg/m³
Melting point-218.79 °C2622.85 °C
Boiling point-182.95 °C4638.85 °C
Discovery year17711778