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CONSEQUENE OF LANTHANIDE CONTRACTION...

CONSEQUENE OF LANTHANIDE CONTRACTION

A

Contraction of atom of lanthanum element due to poor shielding d-subshell electron

B

Contraction of atom of lanthanum element due to high shielding of d-subshell electron

C

Contraction of atom of elements after lanthanum due to poor shielding of f-subshell electron

D

Contraction of atom of elements before lanthanum due to poor shielding of f-subshell electron.

Text Solution

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The correct Answer is:
C
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(a). Chemistry of all the lanthanoids is quite similar. (b). The actinide contraction differs from lanthanide contraction? Explain (c). A serious accident occurred in a chemistry laboratory when a student tried to dissolve excess of KMnO_4 in conc. H_2SO_4 .

GRB PUBLICATION-PERIODIC TABLE-B.Atomic and Ionic Radius
  1. When the atoms: Ba,Cs,Mg,Na are arranged in order of increasing size, ...

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  2. Which element has the largest atomic radius?

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

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

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  5. Consider the ions Li^(+),Na^(+),Be^(2+) and Mg^(2+). Which two are clo...

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  6. Which pair of elements have chemical propeties that are the most simil...

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  7. When the atoms Li,Be,B and Na are arranged in order of increasing atom...

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  8. Which property of an element is most dependent on this shielding effec...

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  9. Which element has the largest atomic radius?

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  10. The atomic radius of elements of which of the following series would b...

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

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  12. Which of the following case the size ratio is minimum?

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  13. For the element X, student Surbhi measured its radius as 102 nm, Mr. G...

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  14. The species having smallest ionic radius is:

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  15. In the crystals of which of the following ionic compounds would you ex...

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  16. CONSEQUENE OF LANTHANIDE CONTRACTION

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  17. Which of the following have total 18 electrons and it is larger than C...

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  18. The size of isoelectronic species F^(ɵ), Ne, and Na^(+) affected by

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  19. Which of the following order of ionic-radius is correct?

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  20. Covalent radius of Ci si 99 pm. Select best representation for CI(2) m...

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