Platinum
Electron Configuration: 2,8,18,32,17,1
Enthalpy of Fusion (kJ mol-1): 19.7
Enthalpy of Vaporisation (kJ mol-1): 469
Atomic Radii
Atomic Radius 135 pm
Bohr Radius 177 pm
Covalent Radius 128 pm
Van der Waals 175 pm
Oxidation States
Main Pt+4
Other Pt0, Pt+2, Pt+5, Pt+6
Ionisation Energies (kJ mol-1) show graph
M - M+ 870
M+ - M2+ 1791
M2+ - M3+ 2800
M3+ - M4+ 3900
M4+ - M5+ 5300
M5+ - M6+ 7200
M6+ - M7+ 8900
M7+ - M8+ 10500
M8+ - M9+ 12300
M9+ - M10+ 14100