MCQ
$Zn$ and $Cd$ metals do not show variable valency because
- AThey have only two electrons in the outermost subshells
- ✓Their $d-$ subshells are completely filled
- CTheir $d-$ subshells are partially filled
- DThey are relatively soft me
✓
Answer
Correct option: B.
Their $d-$ subshells are completely filled
b
$d$-block elements show variable valency due to their incomplete $d$-orbitals but as $d$-orbitals of $Zn$ and $Cd$ are fully filled so they do not show variable valency.
$d$-block elements show variable valency due to their incomplete $d$-orbitals but as $d$-orbitals of $Zn$ and $Cd$ are fully filled so they do not show variable valency.
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