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astatine

音標['?st?ti:n] 讀音

漢語翻譯


n. 砹
【化】 砹At
【醫】 砹(85號元素)

詞型變化:

簡寫符號:At 

英文解釋:

名詞 astatine:

  1. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
    同義詞:At, atomic number 85

詳細解釋:


as.ta.tine

n.Symbol At (名詞)符號 At
A highly unstable radioactive element, the heaviest of the halogen series, that resembles iodine in solution. Its longest lived isotope has a mass number of 20 and has a half-life of 8.3 hours. Atomic number 85; melting point 302=C; boiling point 337=C; valence probably , 3, 5, 7.See table at element
砹:極不穩定放射性元素,在鹵族元素比重最大,在溶解狀態與碘相象,它最長周期的同位素原子量為20,半衰期為8.3小時。原子序數85;溶點302=C;沸點337=C;化合價可能為、3、5、7參見 element

來源:
Greek astatos [unstable] * see astasia
希臘語 astatos [不穩定的] *參見 astasia
-ine 2
-ine2

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