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CGP EDU Academic Team
Published on: August 11, 2026
The set representing the correct order of ionic radius is:
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Verified by ExpertsThe correct answer is:
A
Moving from left to right in a period, the ionic radii decrease due to increase in effective nuclear charge as the additional electrons are added to the same shell, however from top to bottom the ionic radii increase with increasing atomic number and presence of additional shells. Also Li and Mg are diagonally related and hence the order is 
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