| 单词 | virginium |
| 释义 | virginiumvirginium(vəˈdʒɪnɪəm)virginiumvirginium:see franciumfrancium[from France], radioactive chemical element; symbol Fr; at. no. 87; mass no. of most stable isotope 223; m.p. about 27°C; (estimated); b.p. 677°C; (estimated); sp. gr. unknown; valence +1. ..... Click the link for more information. . |
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