Question

Atomic radii of alkali metals $(M)$ follow the order $Li<Na<K<Rb$ but ionic radii in aqueous solution follow the reverse order $L{i}^{+}>N{a}^{+}>K^{+}>R{b}^{+}$ . The reason of the reverse order :

• A. increases in the ionisation energy
• B. decreases in the metallic bond character
• C. increases in the electropositive character
• D. decreases in the amount of hydration

Answer 1

Answer: (D)

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