Aufbau principle, Pauli exclusion principle and Hund's rule Knowledge-Based Practice

Chemistry · Atomic Structure · Chemistry · Electrons in Atoms

1 Chemistry practice questions on Aufbau principle, Pauli exclusion principle and Hund's rule. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    An electron configuration for a carbon atom shows two electrons with paired spins sharing a single 2p2p orbital while the other two degenerate 2p2p orbitals remain completely empty. Which principle or rule is violated by this specific orbital occupancy?

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

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