Antimony: Properties


Atomic

  • Atomic Mass: 121.75
  • Electronegativity:
    • Pauling: 2.05
    • Allred: 1.82
    • Absolute: 4.85 eV
  • Electron Affinity: 101 kJ mol-1
  • Polarizability: 6.6 3
  • Effective Nuclear Charge:
    • Slater: 6.3
    • Clementi: 9.99
    • Froese Fischer: 12.37
  • Radius:
    • Sb 5 +: 62 pm
    • Sb 3 +: 89 pm
    • Atomic: 182 pm
    • Covalent: 141 pm
    • Van der Waals: 220 pm
    • Sb 2 -: 245 pm
  • Successive Ionization Energies:
    • Sb - Sb + : 833.7 kJ mol-1
    • Sb+1 - Sb+2 : 1794 kJ mol-1
    • Sb+2 - Sb+3 : 2443 kJ mol-1
    • Sb+3 - Sb+4 : 4260 kJ mol-1
    • Sb+4 - Sb+5 : 5400 kJ mol-1
    • Sb+5 - Sb+6 : 10400 kJ mol-1
    • Sb+6 - Sb+7 : (12700) kJ mol-1
    • Sb+7 - Sb+8 : (15200) kJ mol-1
    • Sb+8 - Sb+9 : (17800) kJ mol-1
    • Sb+9 - Sb+10 : (20400) kJ mol-1
  • Common Ions : Sb 5 +, Sb 3 +, Sb 2 -