Question

Chemical reactivity of alkali metals increases while that of halogens decreases as we move from top to bottom in a group . Give reasons.

Answer 1

Chemical reactivity of alkali metals increases while that of halogens decreases as we move from top to bottom in a group. ... Since this tendency to gain electrons decreases down the group due to increase in size hence reactivity decreases down the group

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Answer 2

Answer:

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Explanation:

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