consider the orbital diagram shown. which electron rule is broken in the diagram? 1s 2s 2p aufbau principle…

Brief Explanations:

Hund's rule states that electrons will occupy degenerate orbitals singly before pairing up. In the given orbital diagram, electrons should first fill each of the three 2p orbitals singly before any pairing occurs. But here, electrons are paired in 2s while 2p orbitals are empty, violating Hund's rule. The Aufbau principle states that electrons fill lower - energy orbitals first, and in this case, 1s and 2s are filled first which is correct according to Aufbau.

Answer:

Hund's rule