Nils Gabriel Sefström
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Nils Gabriel Sefström (1787 - 1845) Swedish chemist. Sefström ,was a student of Berzelius and when studying the brittleness of steel, in 1830 he discovered a new element, which he gave the name vanadium.

See also: List of Swedish scientists, List of chemists

The original article can be found at: http://en.wikipedia.org/wiki/Nils_Gabriel_Sefström.
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