MP Board · Class 11 · Chemistry · Structure of AtomAccording to Hund's rule of maximum multiplicity, electron pairing in degenerate orbitals occurs only when:
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Step-by-Step Solution
Hund's rule states that electron pairing in orbitals belonging to the same subshell does not take place until each orbital singly occupies one electron.
Detailed Options Breakdown
Option : All degenerate orbitals are singly occupied (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: The principal quantum number increases
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Structure of Atom.
Option 2: The spin quantum number becomes zero
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Structure of Atom.
Option 3: The atom reaches its excited state
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Structure of Atom.
💡 Study Guide: This question tests core syllabus concepts from Structure of Atom. For formulas, key summaries, and mock exam reference guides, read the full Structure of Atom Revision Notes.