K(Z=19):

\(\begin{array}{|c|c|c|}\hline ↑↓\\ \hline\end{array}\)     \(\begin{array}{|c|c|c|}\hline ↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑↓&↑↓&↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑↓&↑↓&↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑\ \\ \hline\end{array}\)

\(K:1s^22s^22p^63s^23p^64s^1\)

`->n=4;l=0;m=0;s=1/2`

Cl(Z=17):

\(\begin{array}{|c|c|c|}\hline ↑↓\\ \hline\end{array}\)     \(\begin{array}{|c|c|c|}\hline ↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑↓&↑↓&↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑↓\\ \hline\end{array}\)    \(\begin{array}{|c|c|c|}\hline ↑↓&↑↓&↑\ \\ \hline\end{array}\)

\(Cl:1s^22s^22p^63s^23p^5\)

`->n=3;l=1;m=0;s=-1/2`