Identify the element if it's expected electronic configuration is $[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4…

Identify the element if it's expected electronic configuration is $[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2}$.
  1. $\mathrm{Hg}$
  2. Co
  3. $\mathrm{Cd}$
  4. $\mathrm{Zn}$

Solution

$[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2} \rightarrow \mathrm{Z}=30(\mathrm{Zn})$

Asked in: MHT CET 2020 (20 Oct Shift 1)

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