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Mg^(2+), O^(2-),Na^(+),F^(-),N^(3-) (Arr...

`Mg^(2+), O^(2-),Na^(+),F^(-),N^(3-)` (Arrange in decreasing order of ionic size)

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The correct Answer is:
`[N^(-3) gt O^(-2) gt F^(-1) gt Na^(+) gt Mg^(2+)]`
[In a isolectronic species, if the positive charge increases atomic size decreases. If the negative charge increases, atomic size increase]
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BANSAL-PERIODIC TABLE-EXERCISE-3
  1. Use the following system of naming elements in which first alphabets o...

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  2. Mg^(2+), O^(2-),Na^(+),F^(-),N^(3-) (Arrange in decreasing order of io...

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  3. Why Ca^(2+) has a smaller ionic radius than K^(+).

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  4. Arrange in decreasing order of atomic size: Na,Cs, Mg, Si, CI

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  5. Why the first ionisation energy of carbon atom is greater than that of...

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  6. The IE do not follow a regular trend in II & III periods with increasi...

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  7. Explain why a few elements such as Be(+0.6),N(+0.3) & He(+0.6) have po...

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  8. Which bond in each pair is more polar (a) P-CI or P - Br (b) S -CI o...

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  9. From among the elements,choose the following: CI,Br, F,Al, C,Li,Cs& Xe...

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  10. In the ionic ompound KF, the K^(+) and F^(-) ions are found to have pa...

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  11. Which oxide is more basic, MgO or BaO? Whay?

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  12. The basic nature of hydroxides of group 13 (III-A) decreases progressi...

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  13. Based on location in P.T. which of the following would you expect to b...

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  14. Compare the following giving reasons Acidic nature of oxides: CaO, CO,...

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  15. The ionisation potentials of atoms A and B are 400 and 300 kcal mol^(-...

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  16. If internuclear distance between CI atoms in CI(2) is 10Å & between H ...

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  17. The As-CI bond distance in AsCI(3) is 2.20 Å. Estimate the SBCR (singl...

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  18. The Pt-CI distance is 2.32 A in several crystaline compounds What is...

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  19. The IE values of Al((g)) = Al^(+) +e is 577.5 kJ mol^(-) and DeltaH fo...

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  20. For the gaseous reaction K+F rarrK^(o+)+F^(ɵ) Delta H = 19 kcal mo...

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