Ruthenium: Properties


Atomic

  • Atomic Mass: 101.07
  • Electronegativity:
    • Pauling: 2.2
    • Allred: 1.42
    • Absolute: 4.5 eV
  • Electron Affinity: 101 kJ mol-1
  • Polarizability: 9.6 3
  • Effective Nuclear Charge:
    • Slater: 3.75
    • Clementi: 7.45
    • Froese Fischer: 10.57
  • Radius:
    • Ru 3 +: 77 pm
    • Ru 4 +: 65 pm
    • Ru 8 +: 54 pm
    • Atomic: 134 pm
    • Covalent: 124 pm
  • Successive Ionization Energies:
    • Ru - Ru + : 711 kJ mol-1
    • Ru+1 - Ru+2 : 1617 kJ mol-1
    • Ru+2 - Ru+3 : 2747 kJ mol-1
    • Ru+3 - Ru+4 : (4500) kJ mol-1
    • Ru+4 - Ru+5 : (6100) kJ mol-1
    • Ru+5 - Ru+6 : (7800) kJ mol-1
    • Ru+6 - Ru+7 : (9600) kJ mol-1
    • Ru+7 - Ru+8 : (11500) kJ mol-1
    • Ru+8 - Ru+9 : (18700) kJ mol-1
    • Ru+9 - Ru+10 : (20900) kJ mol-1
  • Common Ions : Ru 3 +, Ru 4 +, Ru 8 +