STANDARDChemistry-Atomic Structure

STANDARD Chemistry Aufbau Principle MCQ Question

Type: MCQ-conceptual-Medium-Class 11

The correct order of increasing energy of atomic orbitals is

A

5p < 4f < 6s < 5d

B

5p < 6s < 4f < 5d

C

4f < 5p < 5d < 6s

D

5p < 5d < 4f < 6s

Correct Answer

Option B

Detailed Explanation

According to Aufbau principle, electrons are filled in various atomic orbitals in the increasing order of energy: 1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s < 4f < 5d < 6p < 7s.

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