"When Filling Orbitals of Equal Energy,electrons Fill Them Singly First

question 27

Multiple Choice

"When filling orbitals of equal energy,electrons fill them singly first with parallel spins." This is known as:

• A)Hund's rule.
• B)Pauli exclusion principle.
• C)Bohr's model.
• D)Ground state.
• E)none of the above

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