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 metals
✓
Answer
Correct option: B.
their $d-$ subshells are completely filled
b
we can conclude that zinc and mercury do not show variable valency like dblock elements because their $d-$shells are complete and They have only two electrons in the outermost subshells
we can conclude that zinc and mercury do not show variable valency like dblock elements because their $d-$shells are complete and They have only two electrons in the outermost subshells
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