Chemistry-Quantum Mechanical Model

NEET Chemistry Quantum Mechanical Model MCQ Question

Type: MCQ-fact-Easy-Class 11

What is the order of energy levels for orbitals in a multi-electron atom?

A

1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s < 4f < 5d < 6p < 7s

B

1s < 2s = 2p < 3s < 3p = 3d < 4s = 4p < 4d < 4f

C

1s < 2s < 3s < 4s < 5s < 6s < 7s

D

1s = 2s < 2p < 3s < 3p < 4s < 3d

Correct Answer

Option A

Detailed Explanation

The correct order of energy levels for orbitals in a multi-electron atom is 1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s < 4f < 5d < 6p < 7s, as stated in the provided material.

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