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Mg,Mg^(2+),AI and AI^(3+) are arranged i...

`Mg,Mg^(2+),AI` and `AI^(3+)` are arranged in decreasing order of size `1 gt 2 gt 3 gt 4`. Species which are present at 1 and 4 position respectively are:

A

`AI,Mg^(2+)`

B

`Mg,AI^(3+)`

C

`Mg^(2+),AI`

D

`Mg^(2+),AI^(3+)`

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The correct Answer is:
B
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GRB PUBLICATION-PERIODIC TABLE-B.Atomic and Ionic Radius
  1. In the isoelectronic species the ionic radii of N^(3-), O^(2-), F^(-) ...

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  2. The Lanthanide contraction is responsible for the fact that

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  3. Mg,Mg^(2+),AI and AI^(3+) are arranged in decreasing order of size 1 g...

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  4. Which of the following order of radii is incorrect?

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  5. Size of which elements are respresented as non-bonded radii?

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  6. Which gas-phase atom has the largest radius?

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  7. For which pair of species are the radii most similar?

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  8. The ions below are listed in order of increasing radii except:

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  9. Which atom has the largest atomic radius?

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  10. In which list are atoms of the elements Be,B, Mg and AI arranged from ...

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  11. K^(+),CI^(-),Ca^(2+),S^(2-) ions are isoelectronic. The decreasing ord...

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  12. The radius of which is closest to that of the Li^(+) ions?

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  13. For which pair of species is the difference in radii the greatest?

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  14. In which choice are the species listed in order of increasing radius?

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  15. In which list are the ions arranged in order of increasing size?

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  16. In which series are the species listed in order of increasing size ?

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  17. When the atoms: Ba,Cs,Mg,Na are arranged in order of increasing size, ...

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  18. Which element has the largest atomic radius?

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  19. When the atoms, P(Z = 15), S (Z = 16) and As(Z = 33), are arranged in ...

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  20. Which property decreases from left to right across the periodic table ...

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