英语词汇“transition element”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	transition element
释义	Word Frequency transition element or transition metal noun chemistry any element belonging to one of three series of elements with atomic numbers between 21 and 30, 39 and 48, and 57 and 80. They have an incomplete penultimate electron shell and tend to exhibit more than one valency and to form complexes
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