Niobium

Properties

Atomic Number

41

Atomic Symbol

Nb

Atomic Mass

92.9064

CAS No.

7440-03-1

Density

8.57 g/cm³

Series

transition metal

Melting Point

2,477°C

Boiling Point

4,744°C

Thermal Conductivity

0.54 W/cm °C

Heat of Fusion

26.8 kJ/mol

Heat of Vaporization

690 kJ/mol

Electronegativity

1.6 pauling

Crystal Structure

Cubic

Electrical Conductivity

6.7×10⁶ S/m