Cu
Copper
29
Atomic Number: 29
Atomic mass: 63.5463
Ionization energy: 746
Electronaffinity: -118
Covalent radius: 138
Calculated radius: 145
Empirical radius: 135
Vanderwaals radius: 140
Electronegativity: 1.9
Density: 8.92
Oxidation states: 1, 2, 3, 4
Melting point: 1358
Boiling point: 3200
Electron configuration: [Ar] 3d10 4s1
Element group: 11
Element period: 4

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