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2 May, 08:46

What property of an atom determines its general reactivity

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  1. 2 May, 09:16
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    The number of electrons in the outermost shell of an atom determines its reactivity. EX: noble gases have a low reactivity because they have a full electron shell, and don't need any more outermost ones.

    EX: halogens are highly reactive because they readily gain an electron to fill their outermost shell
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