Radium
Electron Configuration: 2,8,18,32,18,8,2
Enthalpy of Fusion (kJ mol-1): 7.15
Enthalpy of Vaporisation (kJ mol-1): 136.7
Atomic Radii
Atomic Radius 233 pm
Bohr Radius 0 pm
Covalent Radius 0 pm
Van der Waals 0 pm
Oxidation States
Main Ra+2
Other
Ionisation Energies (kJ mol-1) show graph
M - M+ 509.3
M+ - M2+ 979
M2+ - M3+ 3300
M3+ - M4+ 4400
M4+ - M5+ 5700
M5+ - M6+ 7300
M6+ - M7+ 8600
M7+ - M8+ 9900
M8+ - M9+ 13500
M9+ - M10+ 15100