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The minimum increase in covalent radius ...

The minimum increase in covalent radius is from

A

`C` to `Si`

B

`Si` to `Ge`

C

`Ge` to `Sn`

D

`Sn` to `Pb`

Text Solution

Verified by Experts

The correct Answer is:
D
Due to the presence of full `4f` subshell (in `Pb`) which shields the nuclear charge ineffectively.
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