Niobium (thing)

Niobium
Symbol: Nb
Atomic Number: 41
Atomic Weight: 92.9064
Boiling Point: 5015 K
Melting Point: 2742 K
Density at 300K: 8.57 g/cm³
Covalent radius: 1.34
Atomic radius: 2.08
Atomic volume: 10.80 cm³/mol
First ionization potental: 6.88 V
Specific heat capacity: 0.265 Jg^-1K^-1
Thermal conductivity: 53.7 Wm^-1K^-1
Electrical conductivity: 6.6 10⁶Ω^-1m^-1
Heat of fusion: 26.9 kJ/mol
Heat of vaporization: 690.1 kJ/mol
Electronegativity: 1.6 (Pauling's)

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