| 单词 | mendelevium |
| 释义 | mendelevium Symbol Md. A radioactive metallic transuranic element belonging to the actinoids; a.n. 101; mass number of the only known nuclide 256 (half-life 1.3 hours). It was first identified by A. Ghiorso, G. T. Seaborg (1912–99), and associates in 1955. The alternative name unnilunium has been proposed. It is named after D. I. Mendeleev (1834–1907) |
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