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13 May, 21:03

What is the chemical formula for a compound between li and br? libr li2br libr2 libr3

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  1. 13 May, 21:13
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    LiBr.

    Explanation:

    Li has 3.0 electrons in his atom and its electronic configuration is 2,1. Br has 35.0 electrons i his atom and its electronic configuration 2,8,18,7. Li has only one electron in its outermost shell and needs losing it to reach stability. While, Br has 7 electrons in its outermost shell and needs gaining 1.0 electron to reach stability "octet rule". So, Li and Br bonded by 1:1 ratio and the chemical formula is LiBr.
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