Sodium
Electron Configuration: 2,8,1
Enthalpy of Fusion (kJ mol-1): 2.64
Enthalpy of Vaporisation (kJ mol-1): 99.2
Atomic Radii
Atomic Radius 180 pm
Bohr Radius 190 pm
Covalent Radius 154 pm
Van der Waals 227 pm
Oxidation States
Main Na+1
Other Na-1 (in liquid NH3)
Ionisation Energies (kJ mol-1) show graph
M - M+ 495.8
M+ - M2+ 4562.4
M2+ - M3+ 6912
M3+ - M4+ 9543
M4+ - M5+ 13353
M5+ - M6+ 16610
M6+ - M7+ 20114
M7+ - M8+ 25490
M8+ - M9+ 28933
M9+ - M10+ 141360