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Question 600218
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Atomic Structure: Hund Rule MCQ

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Hund RuleEasyQuestion 600218

Question

Hund's rule of maximum multiplicity states that:
  1. A
    Electrons fill from lowest energy first
  2. B
    Orbitals of equal energy are filled singly before pairing
    Correct
  3. C
    No two electrons have same set of quantum numbers
  4. D
    Paired electrons are more stable

Correct answer

Orbitals of equal energy are filled singly before pairing

Explanation

Hund's rule: in degenerate orbitals, electrons occupy singly with same spin before pairing. This maximises unpaired electrons (maximum multiplicity).

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