D-And F-Block Elements Ques 310

Question: Zinc and mercury do not show variable valency like d-block elements because

[RPMT 2000; MP PMT 2000]

Options:

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

Show Answer

Answer:

Correct Answer: B

Solution:

$ _{30}Zn $ and $ _{80}Hg $ have their d orbitals completely filled so they do not show any variable valency.



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