JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The radii of

F,{F^ - },O

and

{O^{ - 2}}

are in the order of

View answer and explanation

Correct option: D

{O^{2 - }} > {F^ - } > O > F

Option D is correct because anions are larger than their corresponding neutral atoms, and size decreases across a period, so O2- > F- > O > F.

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\mathrm{O}, \mathrm{O}^{2-}, \mathrm{F}

\mathrm{F}^{-}