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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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