Question

The correct set of quantum numbers for the unpaired $e^{-}$ of chlorine atom is:

• A. $\begin{array}{ccc}n& l& m\\ 2& 1& 0\end{array}$
• B. $\begin{array}{ccc}n& l& m\\ 2& 1& 1\end{array}$
• C. $\begin{array}{ccc}n& l& m\\ 3& 1& 1\end{array}$
• D. $\begin{array}{ccc}n& l& m\\ 3& 0& 0\end{array}$

Answer 1

The correct option is C $\begin{array}{ccc}n& l& m\\ 3& 1& 1\end{array}$

$C{l}_{17}=\left[Ne\right]3s^{2}3p^5$