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In which of the following pairs, the dif...

In which of the following pairs, the difference between the convalent radii of the two metals is maximum.

A

K, Ca

B

Mn , Fe

C

Co , Ni

D

Cr , Mn

Text Solution

Verified by Experts

The correct Answer is:
A
Covalent radii decreases on going from left to right in periods. However among the transition elements the size do not changes much because the electrons add to the penultimate d-subshells i.e. `(n-1)d` - subshell.
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ERRORLESS-CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -NCERT BASED QUESTIONS (Atomic and Ionic Radii)
  1. The atomic radius of elements of which of the following series would b...

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  2. In which of the following pairs, the difference between the convalent ...

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  3. Arrange the following in increasing order of their atomic radius: Na, ...

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  4. The atom of smallest atomic radius among the following is

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  5. In the main group elements (i) as we proceed down the same group in t...

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  6. Which of the following statement is correct with respect to the proper...

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  7. In the periodic table, going down in fluorine group

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  8. Of the following, the one with largest size is

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  9. Which one of the following ions has the highest value of ionic radius?

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  10. Which one of the ions in the table below would have the largest value ...

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  11. Which of the following does not represents the correct order of the pr...

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  12. The order of magnitude of ionic radii of ions Na^(+),Mh^(2+),Al^(3+) a...

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  13. Identify the correct order of the size of the following

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  14. The correct order of radii is

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  15. Which of the following is the correct order of atomic radii

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  16. For which of the following ionic species radius would be maximum?

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  17. The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:

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  18. Which of the following has the largest ionic radius

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  19. Which one of the following is expected to have largest size?

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  20. Ionic radii are

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