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  3. Chemistry
  4. The mobilities of the alkali metal ions in aqueous solution are Li+ < Na+ < K+ < Rb+ < Cs+ because

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Q. The mobilities of the alkali metal ions in aqueous solution are $Li^+ < Na^+ < K^+ < Rb^+ < Cs^+$ because

The s-Block Elements

Solution:

Smaller the size of the ion, greater is the degree of hydration and hence lesser is the mobility in aqueous medium.