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Arrange the ions F^(-),O^(2-) and N^(3-)...

Arrange the ions `F^(-),O^(2-)` and `N^(3-)` in the increasing order of their ionic radii. Give reason

Text Solution

Verified by Experts

`F^(-),O^(3-)` and `N^(3-)` are isoelectronic species.
The anion with the greater negative charge will have a larger radius because of the lesser attraction of the electrons to the nucleus. Hence the increasing order of ionic radii is,
`r_(N^(3-))gtr_(O^(2-))gtr_(F^(-))`
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FULL MARKS-PERIODIC CLASSIFICATION OF ELEMENTS -Additional Questions(3 MARK QUESTIONS)
  1. Define metallic radius.

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  2. Arrange Na^(+),Mg^(2+) and Al^(3+) in the increasing order of ionic ra...

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  3. Arrange the ions F^(-),O^(2-) and N^(3-) in the increasing order of th...

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  4. Mention some characteristics of ionization energy.

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  5. Why ionization energy and electron affinity are calculated in gaseous ...

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  6. How does the shielding effect caused by inner electrons affect the ion...

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  7. Ionization energy of Mg is greater than that of Al. Why?

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  8. What are factors which influence the electron gain enthalpy ?

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  9. Give the general variation of electron gain enthalpies in the periodic...

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  10. Explain about the electronegativity and non-metallic character across ...

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  11. Prove that valency is a periodic property.

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  12. Write a note about periodic trends and chemical reactivity.

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  13. Why the first ionisation enthalphy of sodium is lower than that of mag...

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  14. What are the various factors due to which the ionization enthalpy of t...

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  15. Which of the following pairs of elements would have more negative elec...

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  16. Would you expect the second electron gain enthalpy of O as positive, m...

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  17. What are major differences between metals and non-metals?

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  18. The increasing order of reactivity among group 1 elements is Li< Na< ...

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  19. Arrange the following as stated: (i) N(2),O(2),F(2),CI(2), (Increasing...

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  20. Why the first ionisation enthalphy of sodium is lower than that of mag...

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