释义 |
ce·ri·um AHD[sîrʹē-əm] D.J.[ˈsɪəriːəm]K.K.[ˈsɪriəm]n.Symbol Ce (名词)符号 Ce - A lustrous, iron-gray, malleable metallic rare-earth element that occurs chiefly in the minerals monazite and bastnaesite, exists in four allotropic states, is a constituent of lighter flint alloys, and is used in various metallurgical and nuclear applications. Atomic number 58; atomic weight 140.12; melting point 795°C; boiling point 3,468°C; specific gravity 6.67 to 8.23; valence 3, 4. See table at element 铈:一种有光泽、铁灰色、可延展的金属稀土元素,主要存在于独居石和氟碳铈矿中,以四种同素异形体存在,是轻燧石合金的成分,在冶金和核能工业上有多种应用。原子序数58;原子量140.12;熔点795°C;沸点3,468°C;比重6.67至8.23;化合价3,4 参见 element
- Cer(es) Cer(es)
- -ium -ium
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