What is the number of unpaired electrons present in $\mathrm{Sc}^{3+}$ and $\mathrm{Zn}^{2+}$ ions…

What is the number of unpaired electrons present in $\mathrm{Sc}^{3+}$ and $\mathrm{Zn}^{2+}$ ions respectively?
  1. 1,0
  2. 3,1
  3. 2,2
  4. 0,0

Solution

$\mathrm{Sc}^{+3}=[\mathrm{Ar}]$ $\mathrm{Zn}^{+2}=[\mathrm{Ar}] 3 \mathrm{~d}^{10}$

Asked in: MHT CET 2022 (10 Aug Shift 1)

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