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The radii of F,F^(-),O and O^(-2) are in...

The radii of `F,F^(-),O` and `O^(-2)` are in the order of

A

`O^(2-) gt F^(-) gt O gt F`

B

`O^(2-) gt F^(-) gt F gt O`

C

`F^(-) gt O^(2-) gt F gt O`

D

`O^(2-) gt O gt F^(-) gt F`

Text Solution

Verified by Experts

The correct Answer is:
A
Atomic radius decreases on going from left to right in a period. Thus size of `O gt F.` As `O^(2-) and F^(-)` are isoelectronic, therefore, size of `O^(2-) gt F^(-)`.
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ERRORLESS-CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -PAST YEARS QUESTIONS
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  2. The IUPAC symbol for the element with atomic number 119 would be:

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  3. The radii of F,F^(-),O and O^(-2) are in the order of

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  4. Among the elements Ca,Mg,P and Cl the order of decreasing atomic radii...

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  13. Which of the following gaseous atoms has highest value of IE?

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