Lanthanum
Electron Configuration: 2,8,18,18,9,2
Enthalpy of Fusion (kJ mol-1): 10.04
Enthalpy of Vaporisation (kJ mol-1): 402.1
Atomic Radii
Atomic Radius 195 pm
Bohr Radius 0 pm
Covalent Radius 169 pm
Van der Waals 0 pm
Oxidation States
Main La+3
Other
Ionisation Energies (kJ mol-1) show graph
M - M+ 538.1
M+ - M2+ 1067
M2+ - M3+ 1850
M3+ - M4+ 4819
M4+ - M5+ 6400
M5+ - M6+ 7600
M6+ - M7+ 9600
M7+ - M8+ 11000
M8+ - M9+ 12400
M9+ - M10+ 15900