If Aufbau's principle and Hund's rule were not followed.

State Aufbau's principle.

State Hund's rule

State Hund's rule .

State: Hund's rule

Electronic configuration of lithium cannot be 1s^(3) is best explained by (A) Pauli's exclusion principle (B) Aufbau's principle (C) Hund's rule (D) all of these

The orbital diagram in which both Pauli's exclusion principle and Hund's rule are violated is: