Which of the following is a violation of Aufbau Principle?
A. 1s3
B. 1s2 2s2
C. 1s2 2s2 2p6
D. 1s2 2s2 2p6 3s2
Which is NOT a principle in constructing electron configuration?
Hund's Rule
Pauli's Exclusion
Archimedes
Aufbau