Copper vs Molybdenum

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PropertyCu CopperMo Molybdenum
Atomic number2942
SymbolCuMo
NameCopperMolybdenum
Categorytransition-metaltransition-metal
Standard Atomic Weight63.546 u95.95 u
Period45
Group116
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]4s13d10[Kr]5s14d5
Oxidation states[-2, 0, 1, 2, 3, 4][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.92.16
Electron affinity1.235 eV0.744 eV
Density8933 kg/m³1.020000e+4 kg/m³
Melting point1084.62 °C2622.85 °C
Boiling point2561.85 °C4638.85 °C
Discovery yearN/A1778