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Question

The radii of F,F,O and O2 are in the order of


A

O2>F>O>F

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B

O2>F>F>O

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C

F>O2>F>O

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D

O2>O>F>F

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Solution

The correct option is A

O2>F>O>F


Atomic radius decreases when we go from left to right in a period due to increase in effective nuclear charge. Thus, the size of O > F.

As O2 and F are isoelectronic, therefore, size of O2>F


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