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8 November, 17:05

Why don't we use As as the symbol for astatine

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  1. 8 November, 17:16
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    Answer / Explanation:

    Astatine is the rarest element in the periodic table. It has the chemical symbol At. The reason As is not used as the chemical symbol for Astatine is because As is already the chemical symbol for Arsenic. Two elements cannot share the same symbol.
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