NEETChemistry-Atomic Structure
NEET Chemistry Quantum numbers MCQ Question
Type: MCQ-conceptual-Medium-Class 11
How many nodal planes are there in the atomic orbitals for the principal quantum number n = 3?
A
10
B
9
C
11
D
4
Correct Answer
Option B
Detailed Explanation
For n = 3, there are 3s, 3p, and 3d orbitals. The number of nodal planes is given by l, which is 0 for s, 1 for p, and 2 for d. Total = 0 + 3(1) + 5(2) = 9.
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