Atomic Number: 29

Name: Copper

Original name: Cuprum

Atomic symbol: Cu

Atomic Weight: 63.546

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s¹

Ionization energies: 745 kJ/mol

Pauling electronegativity: 1.9

Melting Point: 1083^oC

Boiling Point: 2567^oC

Hardness (Mohs scale): 3.0

Density: 8.9 g/cm³

Covalent radius: 1.17 angstroms

Ionic radius: 0.87 angstroms (+1); 0.72 angstroms (+2)

Commmon oxidation states in compounds: +1, +2