Which element has two completely filled p sublevels, and four electrons in its other p sublevel in its ground-state electron configuration?
A)S
B)O
C)Se
D)Si
E)Ge

Question

Quizplus · Accepted Answer

The element that fits this description is selenium (Se). Its ground-state electron configuration is [Ar] 3d10 4s2 4p4. The two completely filled p sublevels are the 4p3 and 4p6 sublevels, while the other p sublevel, 4p4, has four electrons.

Which Element Has Two Completely Filled P Sublevels, and Four