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cadmium 音標拼音: [k'ædmiəm] n. 鎘 鎘 cadmium n 1: a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores [synonym: {cadmium}, {Cd}, {atomic number 48}] Cadmium \Cad"mi*um\, n. [NL. See {Cadmia}.] (Chem.) A comparatively rare element related to zinc, and occurring in some zinc ores. It is a white metal, both ductile and malleable. Symbol Cd. Atomic weight 111.8. It was discovered by Stromeyer in 1817, who named it from its association with zinc or zinc ore. [1913 Webster] {Cadmium yellow}, a compound of cadmium and sulphur, of an intense yellow color, used as a pigment. [1913 Webster] cadmium Symbol: Cd Atomic number: 48 Atomic weight: 112.40 Soft bluish metal belonging to group 12 of the periodic table. Extremely toxic even in low concentrations. Chemically similar to zinc, but lends itself to more complex compounds. Discovered in 1817 by F. Stromeyer. cadmio
cadmium
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