Nb
41 transition metal Generado con IA
Niobio
Symbol Nb
Atomic Mass 92.906372
Niobium, formerly columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, ductile transition metal, which is often found in the pyrochlore mineral, the main commercial source for niobium, and columbite. The name comes from Greek mythology:Niobe, daughter of Tantalus since it is so similar to tantalum.
Properties
- Phase: Solid
- Density: 8.57 g/cm³
- Melting Point: 2750 K
- Boiling Point: 5017 K