MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryPeriodic PropertiesAtomic and Ionic Radii

Which one of the following ions has the highest value of ionic radius?

A.O₂–✓ Correct

B.B³⁺

C.Li⁺

D.F–

Explanation

+ 3 + Li and B has two electrons equivalent to helium (He) but the atomic radius of + + 3 Li B due to the high effective nuclear charge of boron. 2 O and F has 10 electrons equivalent to neon (Ne) but the radius of 2 O F due to the high effective nuclear charge of fluorine. Therefore, the order of the ionic radius has the highest value of the ionic radius.

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