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5 March, 14:45

Why do Beryllium and fluorine combine in a 1:2 ratio?

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  1. 5 March, 17:48
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    Since Beryllium is in the second group on the periodic table, we know that it has 2 valence electrons that it wants to 'give up', while fluorine only wants to 'take' 1 electron.

    Be gives 2 ... + 2

    F takes 1 ... - 1

    So in order for it to be balanced, there must be 2 fluorine atoms for every beryllium atom.

    2f:b

    2:1
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