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Atomic Structure STB Atomic Structure MCQs (STB)#Atomic Structure #Quantum Numbers

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If two orbitals have the same value of n + ℓ, which orbital fills first?

Verified Answer & Explanation⌄

Correct Answer: B) Lower n

Concept Explanation

When n + l is the same, the orbital with the lower principal quantum number n has lower energy and fills first.

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