First slide

Modern approach of classification of elements

Question

Zn and Cd metals do not show variable valency because :

Easy

A

They have only two electrons in the outermost subshells
B

Their d-subshells are completely filled
C

Their d-subshells are partially filled
D

They are relatively soft metals

Solution

Zn and Cd metals do not show variable valency because their d-subshells are completely filled.

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