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单词 astatine
释义

alabamine /a-lə-bäˈmēn/

noun

A name once proposed for element number 85, now called astatine

ORIGIN: Alabama, where its discovery in nature was claimed

astatic /ā- or ə-statˈik/

adjective
  1. Having no tendency to stand in a fixed position
  2. Without polarity, as a pair of magnetic needles set in opposite directions (physics)
ORIGIN: Gr astatos unstable, from a- (privative), and statos, verbal adj of histanai to make to stand

astatine /asˈtə-tēn/ noun

A radioactive chemical element (symbol At; atomic no 85) of the halogen series

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更新时间:2025/1/23 10:53:12