Boron
Electron Configuration: 2,3
Enthalpy of Fusion (kJ mol-1): 22.2
Enthalpy of Vaporisation (kJ mol-1): 504.5
Atomic Radii
Atomic Radius 85 pm
Bohr Radius 87 pm
Covalent Radius 82 pm
Van der Waals 0 pm
Oxidation States
Main B+3
Other
Ionisation Energies (kJ mol-1) show graph
M - M+ 800.6
M+ - M2+ 2427
M2+ - M3+ 3660
M3+ - M4+ 25025
M4+ - M5+ 32822
Covalent Bonds (kJ mol-1)
B-H 381
B-H-B 439
B-C 372
B-O 523
B-F 644
B-Cl 444
B-B 335