Answer:
1s2 2s2 2p6 3s2 3p6 4s2 3d 104 p6 5s2 4d 105 p2
its the first one.
Explanation:
If sodium loses an electron, it now has 11 protons, 11 neutrons, and only 10 electrons, leaving it with an overall charge of +1
Hypotheses
D
