"Electrons Added to Atomic Orbitals of the Same Energy Will

question 54

Multiple Choice

"Electrons added to atomic orbitals of the same energy will remain unpaired with parallel spins until the subshell is more than half-filled" is a statement of

• A)the aufbau principle.
• B)Hund's rule.
• C)the Pauli exclusion principle.
• D)the periodic law.
• E)the singularity rule.

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