Lecoq de Boisbaudran



  He was the French chemist who discovered gallium, samarium, and dysprosium. He developed methods of separating the rare earths, thereby greatly untangling the confusion regarding this group of elements. He also developed methods of spectroscopy which he used to identify these elements. With Bunsen, Kirchhoff, and Crookes, he is regarded as one of the founders of spectroscopic analysis.  


  1. "Gallium" article in the Hexagon of Alpha Chi Sigma

  2. Photographs of Cognac, France

  3. Photographs of Pierrefitte, France

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