Copper: Properties


Atomic

  • 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 3
  • 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
  • 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 +