Which of the following arrangement is possible? array llll n & l &...

For a given value of $n, l=0$ to $n-1$; for a given value of $l, m=-l$ to $+l$ including zero; for a given value of $m, s=+\frac{1}{2},-\frac{1}{2}$ $\therefore \quad$ When $n=5$, then $l=0,1,2,3,4$; when $l=2$, then $m=-2,-1,0,+1,+2$ The value of $s$ can be $\pm 1 / 2$ Hence, the arrangement, $n=5, l=2, m=2$, $s=+1 / 2$ is possible for an electron.