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Which of the following grouping represen...

Which of the following grouping represents a collection of isoelectronic species (At. No : 'Cs=55, Br=35' )

A

N^(3-), F^-, Na^+'

B

'Be, Al^(3+), Cl^-'

C

Ca^(2+), Cs^+, Br'

D

Na^+, Ca^(2+), Mg^(2+)'

Text Solution

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The correct Answer is:
A
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V PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. The ionic radii of isoelectronic species 'N^(3-), O^(2-)' and 'F^-' in...

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  2. The ions 'O^(2-), F^-, Na, Mg^(2+)' and 'Al^(3+)' are isoelectronic. T...

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  3. Which of the following grouping represents a collection of isoelectron...

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  4. Ionic radii are

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  5. Which of the following ions has the highestvalue of ionic radius?

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  6. Which one of the following sets of ions represents the collection of i...

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  7. elements with atomic no '9,17,35,53' and 85 are all

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  8. In a given shell, the order of screening effect is

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  9. For electron affinity of halogens, which of the following is correct?

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  10. elements with atomic no '9,17,35,53' and 85 are all

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  11. In a given shell, the order of screening effect is

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  12. Consider the ions: 'K^+, S^(2-), Cl^-' and 'Ca^(2+) .' The radii of th...

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  13. Which of the following have nọ unit?

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  14. In which of the following arrangements, the order is NOT according to ...

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  15. Which of the following is not an actinide?

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  16. Europium is

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  17. Which one of the following arrangements represents the correct order o...

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  18. In the following, the element with the highest ionization energy is

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  19. One mole of magnesium in the vapour state absorbed 1200 kJ 'm o l^(-1)...

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  20. Which of the following sets of ions represents a collection of isoelec...

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