A Possible Set of Quantum Numbers for the Last Electron

Multiple Choice

A possible set of quantum numbers for the last electron added to complete an atom of germanium (Ge) in its ground state is $\begin{array}{cccc}~~~~~\text { n } & l & \mathrm{~m}_{l} & \mathrm{~m}_{\mathrm{s}} \\\text { A. } 4 & 0 & 0 & +1 / 2 \\\text { B. } 3 & 0 & +1 & -1 / 2 \\\text { C. } 4 & 1 & -1 & +1 / 2 \\\text { D. } 3 & 1 & +1 & -1 / 2 \\\text { E. } 4 & 2 & +2 & -1 / 2\end{array}$

A) A
B) B
C) C
D) D
E) E