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NEETChemistryStructure of Atom

According to the Pauli exclusion principle, what is the maximum number of electrons that can exist in an orbital, and what condition must they satisfy?

Options

  1. ATwo electrons can exist in an orbital, and they must have the same spin.
  2. BTwo electrons can exist in an orbital, and they must have opposite spin.
  3. CFour electrons can exist in an orbital, and they must have the same spin.
  4. DFour electrons can exist in an orbital, and they must have opposite spin.

Correct answer

B. Two electrons can exist in an orbital, and they must have opposite spin.

Step-by-step solution

"Only two electrons may exist in the same orbital and these electrons must have opposite spin."

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