When Filling Degenerate Orbitals,electrons Fill Them Singly First,with Parallel Spins

question 124

Multiple Choice

When filling degenerate orbitals,electrons fill them singly first,with parallel spins.This is known as (the)

• A) Pauli exclusion principle.
• B) Hund's rule.
• C) Aufbau principle.
• D) Heisenberg uncertainty principle.

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