英语词汇“radioactinium”的翻译、意思、用法、释义-英汉双解词典-雅致网

单词	radioactinium
释义	Definition of radioactinium in English: radioactinium noun historical An isotope of thorium (thorium-227) which is produced by beta decay of actinium and itself decays by alpha emission with a half-life of 18.7 days. Origin Early 20th century. Definition of radioactinium in US English: radioactinium noun historical An isotope of thorium (thorium-227) which is produced by beta decay of actinium and itself decays by alpha emission with a half-life of 18.7 days. Origin Early 20th century.
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Definition of radioactinium in English: