Which is an IMPOSSIBLE electron configuration?
A. 1s22s2
B. 1s22s22p4
C. 1s32s22p5
D. 1s22s22p6 3s2
Answer:C
Which is an IMPOSSIBLE electron configuration?
A. 1s22s2 B. 1s22s22p4 C. 1s32s22p5 D. 1s22s22p6 3s2