Under normal condition which of the following electronic configuration is able to form dipositive ion

Under normal condition which of the following electronic configuration is able to form dipositive ion
  1. $[\mathrm{Ar}] 4 \mathrm{~s}^{1}$
  2. $[\mathrm{Ne}] 2 \mathrm{~s}^{2} 3 \mathrm{p}^{6}$
  3. $[\mathrm{Ne}] 3 \mathrm{~s}^{2}$
  4. None of these

Solution

$\mathrm{Mg}$ has only two electrons in the 3 s-orbital and hence its $\mathrm{LE}$. is lowest, i.e. it has the maximum tendency to from di-positive ions. ^

Asked in: JEE-TOPICTESTS-CHEMISTRY

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