Question

Which is in largest size in aqueous medium li+ or cs+?

Answer 1

Answer:

but situation is different for hydrated metal ions, it is exactly oopposite , because large (Charge/ size ) ratio, Li being the smallest in size ,can attract elctrostatically, large number of surrounding dipolar water molecules, thus observed trend for hydrated cations, size decreases from Li +(aq)to Cs+ (aq).

Explanation:

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Answer 2

Li has the largest size in aquas medium.