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25 September, 00:12

How is reactivity of elements related to valence electrons

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  1. 25 September, 00:39
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    The number of valence electrons determines reactivity.

    For example, Noble Gases are not very reactive because they already have a full set of 8 valence electrons.

    However, those with less electrons are more reactive because they don’t have a "full set" yet.

    Also, keep in mind that as you move down a family the reactivity decreases.
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