Indium: historical information

Indium was discovered by Ferdinand Reich, Hieronymus Theodor Richter at 1863 in Germany. Origin of name: named after the indigo line in its atomic spectrum.

Indium was discovered by Ferdinand Reich and Theodore Richter, who later isolated the metal. It was found and spectroscopically identified as a minor component in zincores. Until 1924, a gram or so constituted the world's supply of this element in isolated form. In fact, it is probably about as abundant as silver.

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indium atomic number