Marzilli, Luigi G. Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana.
Marzilli, Patricia A. Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana.
Last reviewed:August 2019
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A chemical element, Co, atomic number 27, atomic weight 58.933. Cobalt, a lustrous silvery-blue metal, was isolated in 1735 by the Swedish scientist G. Brandt, who called the impure metal cobalt rex, after the ore from which it was extracted. The metal was shown to be a previously unknown element by T. O. Bergman in 1780.
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