Swedish chemist Per Teodor Cleve identifies scandium…

1879 CE

Swedish chemist Per Teodor Cleve identifies scandium with the hypothetical ekaboron later in 1879.

The agreement of its properties with those predicted by Dmitri Mendeleev help to bring about general scientific acceptance of Mendeleev's periodic table.

Also in 1879, Cleve discovers thulium, together with holmium, having separated the former chemically from the oxide thulia, which he names after Thule, the ancient Latin name for the most northerly land.

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Uppsala Stockholms Län Sweden View →

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Dmitri Mendeleev View → Lars Fredrik Nilson View → Per Teodor Cleve View →

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Technology View → Chemistry View →

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