单词 | indium |
释义 | Word Frequency indium(ˈɪndɪəm) noun a rare soft silvery metallic element associated with zinc ores: used in alloys, electronics, and electroplating. Symbol: In; atomic no: 49; atomic wt: 114.82; valency: 1, 2, or 3; relative density: 7.31; melting pt: 156.63°C; boiling pt: 2073°C Word origin C19: New Latin, from indigo + -ium |
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