Element: niobium |
Name : niobium |
Symbol : Nb |
Atomicnumber : 41 |
Relativeatomicmass : 92.90637 (2) |
Standardstate : solid at 298 K |
Appearance : grey metallic |
Classification : Metallic |
Groupinperiodictable : 5 |
Groupname : (none) |
Periodinperiodictable : 5 |
Blockinperiodictable : d |
Shellstructure : 2.8.18.12.1 |
CASRegistry : 7440-03-1 |
Description : The name niobium was adopted officially by IUPAC in 1950, but a few commercial producers still like to refer to it as columbium. |