Date of Discovery: 1801
Discoverer: Charles Hatchet
Name Origin: After Niobe, daughter of mythical king (Tantalus)
Uses: No uses known
Obtained From: Columbite

 
Atomic Number: 41
Atomic Mass: 92.90638 amu
Melting Point: 2468.0 °C (2741.15 °K, 4474.4 °F)
Boiling Point: 4927.0 °C (5200.15 °K, 8900.6 °F)
Crystal Structure: Cubic
Density @ 293 K: 8.57 g/cm3
Color: White

 
Isotope
Nb-90
Nb-91
Nb-91m
Nb-92
Nb-92m
Nb-93
Nb-93m
Nb-94
Nb-94m
Nb-95
Nb-95m
Nb-96
Nb-97
Nb-97m
Half Life
14.6 hours
700.0 years
62.0 days
3.6E7 years
10.13 days
Stable
16.1 years
20000.0 years
6.26 min
34.97 days
3.61 days
23.4 hours
1.23 hours
58.1 sec