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Zn and Hg do not show variable valency l...

`Zn` and `Hg` do not show variable valency like `d-`block elements because-

A

They are soft

B

Their d- shells are complete

C

They have only two electrons in the outermost subshell

D

Their d-shells are incomplete

Text Solution

Verified by Experts

The correct Answer is:
B
`._(30)Zn and ._(80)Hg` have their d orbitals completely filled so they do not show any variable valency.
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