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单词 astatine
释义

astatine/ʹastəteen, -tin/ noun

a radioactive chemical element of the halogen group, similar to iodine and formed by radioactive decay or made artificially: symbol At, atomic number 85

[Greek astatos unsteady, from a-2 + statos standing, from histanai to cause to stand]
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更新时间:2024/12/22 18:33:18