Categories: 1787 births | 1845 deaths | Discoverer of a chemical element | Swedish chemists
Nils Gabriel Sefström (June 2, 1787 - November 30, 1845) Swedish chemist. Sefström, was a student of Berzelius and when studying the brittleness of steel, in 1830 he discovered a new chemical element, which he gave the name vanadium.