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

question 18

Multiple Choice

When filling degenerate orbitals,electrons fill them singly at first,with parallel spins.This is know as

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

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