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Atomic Structure Pauli Exclusion Principle

1

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The two electrons in a 1s orbital must differ in:

Verified Answer & Explanation⌄

Correct Answer: D) Spin quantum number

Concept Explanation

Both electrons have: n = 1, ℓ = 0, mℓ = 0 but their spin quantum numbers are opposite: mₛ = +½ and −½.

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