- Atomic Mass: 63.546
- Electronegativity:
- Pauling: 1.9
- Allred: 1.75
- Absolute: 4.48 eV
- Electron Affinity: 118.5 kJ mol-1
- Polarizability: 6.7 Å3
- Effective Nuclear Charge:
- Slater: 4.2
- Clementi: 5.84
- Froese Fischer: 8.07
- Radius:
- Cu 1 +: 96 pm
- Cu 2 +: 72 pm
- Atomic: 127.8 pm
- Covalent: 117 pm
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- Successive Ionization Energies:
- Cu -› Cu + : 745.4 kJ mol-1
- Cu+1 -› Cu+2 : 1958 kJ mol-1
- Cu+2 -› Cu+3 : 3554 kJ mol-1
- Cu+3 -› Cu+4 : 5326 kJ mol-1
- Cu+4 -› Cu+5 : 7709 kJ mol-1
- Cu+5 -› Cu+6 : 9940 kJ mol-1
- Cu+6 -› Cu+7 : 13400 kJ mol-1
- Cu+7 -› Cu+8 : 16000 kJ mol-1
- Cu+8 -› Cu+9 : 19200 kJ mol-1
- Cu+9 -› Cu+10 : 22400 kJ mol-1
- Common Ions : Cu 1 +, Cu 2 +
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