NEET Chemistry · Hard

Structure of Atom: Energy ordering MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Energy orderingHardQuestion 21117

Question

Among 3s, 3p, and 3d orbitals of a multi-electron atom, increasing energy order is:

  1. A
    3s < 3p < 3d
    Correct
  2. B
    3d < 3p < 3s
  3. C
    3p < 3s < 3d
  4. D
    3s < 3d < 3p

Correct answer

3s < 3p < 3d

Explanation

Within the same shell, energy increases with l for multi-electron atoms.