What is a possible set of quantum numbers for an unpaired electron in the orbital box diagram below?
[Kr] NNNNN
N
4d
5s
↓↓
5p
n=4, & 2, $m_l$ = -1, $m_s$=-1/2
n=5, & 0, $m_l$ = 0, $m_s$ = -1/2
n=5, & 1, $m_l$=-1, $m_s$ = +1/2
n=5, & 2, $m_l$=-2, $m_s$ = +1/2
n=1, & 1, $m_l$=-1, $m_s$ = +1/2