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2 results for “Erbium”
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Britannica 11th
Encyclopaedia Britannica · 11th edition
Erbium
Britannica 11thERBIUM (symbol, Er; atomic weight, 165-166), one of the metals of the rare earths. The first of the rare earth minerals was discovered in 1794 by J. Gadolin and was named gadolinite from its discoverer. In 1797 Ekeberg showed that gadolinite contained another ...
Vol. 9, pp. 733-734
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Erastus, Thomas
Britannica 11th... tly archdeacon of Colchester), silenced (1565) at Bury St Edmunds ERATOSTHENES— ERBIUM by Archbishop Parker. Withers had proposed a disputation against vestments, which the university would not allow; his thesis affirming the excommunicating power of the presb ...
Vol. 9, pp. 732-733
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