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单词 virginium
释义

virginium


virginium

(vəˈdʒɪnɪəm) n (Elements & Compounds) chem a former name for francium

virginium


virginium:

see franciumfrancium
[from France], radioactive chemical element; symbol Fr; at. no. 87; mass no. of most stable isotope 223; m.p. about 27&degC; (estimated); b.p. 677&degC; (estimated); sp. gr. unknown; valence +1.
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