What Chemical Element Is Nb?

The chemical element "Nb" stands for is: Niobium.

Niobium chemical symbol Nb, atomic number 41, atomic weight 92.90638, belongs to the Periodic System V B. 1801 British C. Hatchett from columbite separated from the oxides of a new element, and named the element columbium (Chinese translation columbium). Niobium is a grayish-white metal with a melting point of 2468°C, a boiling point of 4742°C, and a density of 8.57g/cm³.

Niobium is a lustrous gray metal that is paramagnetic and belongs to group 5 on the periodic table. High purity niobium metal is ductile but hardens with increasing impurity content. Niobium has a low capture cross-section for thermal neutrons and is therefore quite useful in the nuclear industry.