Caesium
Electron Configuration: 2,8,18,18,8,1
Enthalpy of Fusion (kJ mol-1): 2.09
Enthalpy of Vaporisation (kJ mol-1): 66.5
Atomic Radii
Atomic Radius 260 pm
Bohr Radius 298 pm
Covalent Radius 235 pm
Van der Waals 0 pm
Oxidation States
Main Cs-1, Cs+1
Other
Ionisation Energies (kJ mol-1) show graph
M - M+ 375.7
M+ - M2+ 2420
M2+ - M3+ 3400
M3+ - M4+ 4400
M4+ - M5+ 6000
M5+ - M6+ 7100
M6+ - M7+ 8300
M7+ - M8+ 11300
M8+ - M9+ 12700
M9+ - M10+ 23700