🦷 DAT Exam Prep

Hunds rule states that:

A Electrons pair first

B Electrons fill orbitals of equal energy singly with parallel spins before pairing

C Higher energy orbitals fill first

D All orbitals hold 2 electrons

✓ Correct Answer: Option B

Hunds rule: one electron in each degenerate orbital before pairing (maximizes spin multiplicity). Minimizes electron repulsion.