Which of the following electron configurations represents that of an atom in its ground state?
A
1s 22s12p1
B
1s22s22p63s13p1
C
1s22s12p3
D
1s22s22p63s0
Verified Correct Answer: D.
Chemical Principles & Mechanism
The ground state of an electron, the energy level it normally occupies, is the state of lowest energy for that electron.
Source: WAEC / JAMB / NECO Classroom Archive (Record #37732)