Boron
Symbol:
B
Atomic Number: 5
Boiling Point: 4275 K
Melting Point: 2365 K
Density at 300K: 2.34 g/cm
3
Covalent radius: 0.82
Atomic radius: 1.17
Atomic
volume: 4.60 cm
3/mol
First
ionization potental: 8.298 V
Specific heat capacity: 1.026 Jg
-1K
-1
Thermal conductivity: 27.0 Wm
-1K
-1
Electrical conductivity: 5*10
-12 10
6Ω
-1m
-1
Heat of fusion: 22.6 kJ/mol
Heat of vaporization: 507.8 kJ/mol
Electronegativity: 2.04 (Pauling's)