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 .

The inceasing order of reactivity among group 1 elements is Li lt Na l

1.	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 .
Answer» Solution :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.