NEET 2004 Chemistry question

Ionic radii are :-

(1)Inversely proportional to square of effective nuclear charge
(2)Directly proportional to effective nuclear charge
(3)Directly proportional to square of effective nuclear charge
(4)Inversely proportional to effective nuclear chargeCorrect

Answer: (4)

Solution

For isoelectronic ions the electron cloud is the same, so the greater the effective nuclear charge the stronger the pull on the electrons and the smaller the radius: ionic radius

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Question ID VK-089407