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why does hydration entalpies of alkali metals decrease with increase in ionic size?

why does hydration entalpies of alkali metals decrease with increase in ionic size?
 

Grade:11

1 Answers

Ravleen Kaur
askIITians Faculty 1452 Points
5 years ago
With increase in size of ion, the positive charge disperses and water molecules comes less in primary sphere and less release of energy.

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