Question

8 what principle is the following orbital diagram violating? * (0.5 points) aufbau principle hunds rule pauli exclusion principle none

Explanation:

Hund's Rule states that electrons in degenerate orbitals fill singly first with parallel spins before pairing up. In the given 2p - orbital diagram, electrons should first fill each of the three 2p orbitals singly with parallel spins before pairing, but here they are paired prematurely. The Aufbau Principle is about filling orbitals in order of increasing energy (which seems to be followed here as 1s is filled first, then 2s, then 2p). The Pauli - Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers, and this is not violated here as the paired electrons in 1s and 2s have opposite spins.

Answer:

B. Hund's Rule