An artificially produced radioactive element, atomic number 105. Symbol Ha.
单词 | θ68919 |
释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > hahnium > [noun] (4) hahnium1970 An artificially produced radioactive element, atomic number 105. Symbol Ha. bohrium1971 (A name proposed for) an artificially produced transuranic chemical element, atomic number 105 (now called dubnium). Cf. nielsbohrium, n. 1. Now di… nielsbohrium1973 (A name proposed for) the artificially produced transuranic element of atomic number 105 (now called dubnium). dubnium1997 A radioactive transuranic chemical element, atomic number 105, produced artificially. Symbol Db. |
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