Oxygen vs Copper

PropertyO OxygenCu Copper
Atomic number829
SymbolOCu
NameOxygenCopper
Categorynonmetaltransition-metal
Standard Atomic Weight15.9994 u63.546 u
Period24
Group1611
Blockps
Phase at STPgassolid
Electron configuration[He]2s22p4[Ar]4s13d10
Oxidation states[-2, -1, 0, 1, 2][-2, 0, 1, 2, 3, 4]
Electronegativity (Pauling)3.441.9
Electron affinity1.4611 eV1.235 eV
Density1.429 kg/m³8933 kg/m³
Melting point-218.79 °C1084.62 °C
Boiling point-182.95 °C2561.85 °C
Discovery year1771N/A