The number of d -electrons in Fe 2 + ( Z = 26 ) is not equal to the number of electrons in which one of the…

1. $\mathrm{s}$-electrons in $\mathrm{Mg} \left(\mathrm{Z}=12\right)$
2. $\mathrm{p}$-electrons in $\mathrm{Cl} \left(\mathrm{Z}=17\right)$
3. $\mathrm{d}$-electrons in $\mathrm{Fe} \left(\mathrm{Z}=26\right)$
4. $\mathrm{p}$-electrons in $\mathrm{Ne} \left(\mathrm{Z}=10\right)$

Solution

Asked in: NEET 2015 (Phase 1)

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