eka actinium
... actinium family 锕族 ; 锕系 eka actinium 类锕 series actinium 锕系 ...
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锕类 [化学] actinide
锕类元素 actinide series
·2,447,543篇论文数据,部分数据来源于NoteExpress
锘在锕类元素中的一种放射性超铀元素,人工微量制造,其最长寿命的同位素是锘255,其。
A radioactive transuranic element in the actinide series, artificially produced in trace amounts. Its longest-lived isotope is No255 with a half-life of3 minutes. Atomic number102.
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