Terbium
Electron Configuration: 2,8,18,27,8,2
Enthalpy of Fusion (kJ mol-1): 16.3
Enthalpy of Vaporisation (kJ mol-1): 391
Atomic Radii
Atomic Radius 175 pm
Bohr Radius 225 pm
Covalent Radius 0 pm
Van der Waals 0 pm
Oxidation States
Main Tb+3
Other Tb+4
Ionisation Energies (kJ mol-1) show graph
M - M+ 564.6
M+ - M2+ 1112
M2+ - M3+ 2114
M3+ - M4+ 3839