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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
We know that of `F=0.72Å` , `F^(-)=1.36Å` and `O_(2)^(-)=1.40Å`,`O=0.73Å`
Further radii of atoms and ions depends upon relative nuclear charge therefore the raddi are in the other
`O^(-2)gtF^(-)gtOgtF`
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DISHA PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Exercise -1 :Concept Builder (Topic 2)
  1. Which of the following transitions involves maximum amount of energy?

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  2. Ionisation energy decreases down the group due to

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  3. Which one has least ionisation potential?

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  4. Na^(+), Mg^(2+), Al^(3+), and Si^(4+) are isoelectronic ions. Their io...

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  5. Ionic radii are

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

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  7. Atomic radil of fluorine and neon in Angstrom units are respectively ...

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  8. The screening effect of inner electrons of an atom can cause

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  9. The second ionization potential of elements is invariably higher than ...

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  10. The pair of elements having approximately equal ionisation potential i...

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  11. Which of the following option is incorrect with respect to ionic radii...

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  12. Which of the following element has maximum, first ionisation potential...

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

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  14. Which of the following has same size?

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  15. The correct decreasing order of first ionisation enthalpies of five el...

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  16. The correct order of second ionisation potential of C, N, O and F is:

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  17. Which of the following arrangements represents the increasing order (s...

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  18. The atomic sizes are not significantly different for the series of ele...

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  19. The correct order of the ionic radii of the ions is

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  20. The decreasing order of the ionization potential of the following elem...

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