Rhenium: Properties


Atomic

  • Atomic Mass: 186.207
  • Electronegativity:
    • Pauling: 1.9
    • Allred: 1.46
    • Absolute: 4.02 eV
  • Electron Affinity: 14 kJ mol-1
  • Polarizability: 9.7 3
  • Effective Nuclear Charge:
    • Slater: 3.6
    • Clementi: 10.12
    • Froese Fischer: 14.62
  • Radius:
    • Re 4 +: 72 pm
    • Re 6 +: 61 pm
    • Re 7 +: 60 pm
    • Atomic: 137 pm
    • Covalent: 128 pm
  • Successive Ionization Energies:
    • Re - Re + : 760 kJ mol-1
    • Re+1 - Re+2 : 1260 kJ mol-1
    • Re+2 - Re+3 : 2510 kJ mol-1
    • Re+3 - Re+4 : 3640 kJ mol-1
    • Re+4 - Re+5 : (4900) kJ mol-1
    • Re+5 - Re+6 : (6300) kJ mol-1
    • Re+6 - Re+7 : (7600) kJ mol-1
  • Common Ions : Re 4 +, Re 6 +, Re 7 +