MCQ
The elements having the electronic configuration, [$Kr$] $4{d^{10}}{f^{14}},\,5{s^2}{p^6}{d^2},\,6{s^2}$ belongs to
- A$s$-block
- B$p$-block
- ✓$d$-block
- D$f$-block
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[Use: $\left.\mathrm{R}=8.3 \,\mathrm{~J} \,\mathrm{~mol}^{-1}\, \mathrm{~K}^{-1}\right]$
