Meaning of NIOBIUM in English


Name: niobium

Symbol: Nb

Atomic number: 41

Atomic weight: 92.90638 (2)

Group in periodic table: 5

Group name:

Period in periodic table: 5

Block in periodic table: d-block

CAS registry ID: 7440-03-1

The name niobium was adopted officially by IUPAC in 1950, but a few commercial producers still like to refer to it as columbium. Niobium is a shiny, white, soft, and ductile metal, and takes on a bluish tinge when exposed to air at room temperatures for a long time. The metal starts to oxidize in air at high temperatures, and when handled hot must be done so under a protective atmosphere so as to minimize oxide production.

Chemistry of the elements English vocabulary.      Английский словарь химии элементов.