Boron
Elemental State B
Electron Configuration 1s22s22p1
First Ionization Potential 8.298 eV
Electron Affinity 0.277 eV
Z* 2.421 (Clementi-Raimondi)
Pauling Electronegativity 2.04
Covalent Radius 0.82 Å
Metallic Radius  
Ionic Radius 0.15 Å B3+ coordination number = 3

0.25 Å B3+ coordination number = 4

0.41 Å B3+ coordination number = 6

van der Waal's Radius  
Melting Point 2075 oC
Boiling Point 4000 oC
Density 2.34 g/cm3
Other Properties