The increasing order of reactivity among group 1 elements is Li < Na < – InterviewSolution

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1.	The increasing order of reactivity among group 1 elements is Li < Na < K < Rb Cl > Br > I. Explain.
Answer» The elements of group 1 have only one electron in their respective valence shells and thus have a strong tendency to lose this electron. The tendency to lose electrons in turn, depends upon the ionization enthalpy. Since the ionization enthalpy decreases down the group therefore, the reactivity of group 1 elements increases in the same order Li

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