Boron (thing)

Boron
Symbol: B
Atomic Number: 5
Boiling Point: 4275 K
Melting Point: 2365 K
Density at 300K: 2.34 g/cm³
Covalent radius: 0.82
Atomic radius: 1.17
Atomic volume: 4.60 cm³/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 10⁶Ω^-1m^-1
Heat of fusion: 22.6 kJ/mol
Heat of vaporization: 507.8 kJ/mol
Electronegativity: 2.04 (Pauling's)

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