Rhodium
Electron Configuration: 2,8,18,16,1
Enthalpy of Fusion (kJ mol-1): 21.55
Enthalpy of Vaporisation (kJ mol-1): 494.3
Atomic Radii
Atomic Radius 135 pm
Bohr Radius 173 pm
Covalent Radius 135 pm
Van der Waals 0 pm
Oxidation States
Main Rh+3
Other Rh-1, Rh0, Rh+1, Rh+2, Rh+4, Rh+5, Rh+6
Ionisation Energies (kJ mol-1) show graph
M - M+ 720
M+ - M2+ 1744
M2+ - M3+ 2997
M3+ - M4+ 4400
M4+ - M5+ 6500
M5+ - M6+ 8200
M6+ - M7+ 10100
M7+ - M8+ 12200
M8+ - M9+ 14200
M9+ - M10+ 22000