单词 | scandium |
释义 | Word Frequency scandium(ˈskændɪəm) noun a rare light silvery-white metallic element occurring in minute quantities in numerous minerals. Symbol: Sc; atomic no: 21; atomic wt: 44.955910; valency: 3; relative density: 2.989; melting pt: 1541°C; boiling pt: 2836°C Word origin C19: from New Latin, from Latin Scandia Scandinavia, where it was discovered |
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