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The inceasing order of reactivity among ...

The inceasing order of reactivity among group 1 elements is `Li lt Na lt K lt Rb lt CS` whereas that among group 17 is `F gt Cl gt Br gt I`. Explain .

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Group I elements are electropositive in which IE decrases down the group.Therefore reactivity increases down the group. Group 17 elements are electronegative which show strong electron accepting capacity. This property depends on their elctrode potentials which very as `F gt Cl gt Br gt I`. So the reactivity follows the same order.
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A N EXCEL PUBLICATION-CLASSIFICATION TO ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
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  2. What are the mojor differece between metals and non metals ?

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  9. The first IE and second IE (Kj mol^(-1)) and daltaegH(kJ mol^(-1)) of...

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