NEET Chemistry ยท Medium

Structure of Atom: n+l rule MCQ

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n+l ruleMediumQuestion 21078

Question

Between 4s and 3d, the lower energy orbital during filling is:

  1. A
    4s
    Correct
  2. B
    3d
  3. C
    Both equal
  4. D
    Depends only on element

Correct answer

4s

Explanation

Because 4s has lower n+l value than 3d.