Definitionn. a ductile grey metallic element of the lanthanide series
Last update: October 10, 2015
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In its character yttrium is closely allied to, and in nature is always associated with, cerium, lanthanum, didymium and erbium (see Rare Earths). [Please select]
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The rare metals cerium, lauthanum, and didymium have been lately investigated by Drs. [Please select]
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It tarnishes more easily and inflames less easily than cerium. [Please select]
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The mantle is made by dipping a cylinder of cotton net into a solution of nitrate of thorium and cerium, containing 99 per cent. [Please select]
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