astatine
英 ['æstətiːn]
美['æstətin]
- n. [化学] 砹(化学元素At)
中文词源
astatine 砹
前缀a-, 不,非。词根st, 站立,稳定。指该化学元素不稳定。
英文词源
- astatine (n.)
- radioactive element, named 1947, from Greek astatos "unstable" (see astatic) + chemical suffix -ine (2). So called for its short half-life and lack of stable isotopes. "The element appears not to have a stable form and probably does not exist in nature" [Flood, "Origin of Chemical Names"].
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