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单词 illinium
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illinium


illinium

(ɪˈlɪnɪəm) n (Elements & Compounds) chem the former name for promethium[C20: New Latin, from Illinois + -ium]

illinium


illinium

(ĭlĭn`ēəm): see promethiumpromethium
, artificially produced radioactive chemical element; symbol Pm; at. no. 61; mass no. of most stable isotope 145; m.p. 1,042&degC;; b.p. 3,000&degC; (estimated); sp. gr. unknown; valence +3.
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illinium

[ə′lin·ē·əm] (nuclear physics) promethium-147
MedicalSeepromethium
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更新时间:2024/12/23 5:33:20