Zirconium
Electron Configuration: 2,8,18,10,2
Enthalpy of Fusion (kJ mol-1): 23
Enthalpy of Vaporisation (kJ mol-1): 566.7
Atomic Radii
Atomic Radius 155 pm
Bohr Radius 206 pm
Covalent Radius 148 pm
Van der Waals 0 pm
Oxidation States
Main Zr+4
Other Zr0, Zr+1, Zr+2, Zr+3
Ionisation Energies (kJ mol-1) show graph
M - M+ 660
M+ - M2+ 1267
M2+ - M3+ 2218
M3+ - M4+ 3313
M4+ - M5+ 7860
M5+ - M6+ 9500
M6+ - M7+ 11200
M7+ - M8+ 13800
M8+ - M9+ 15700
M9+ - M10+ 17500