Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following combinations of quantum numbers are valid for an electron in an atom?
A
n = 3, l = 2, ml = -2, ms = +1/2
B
n = 2, l = 2, ml = 1, ms = -1/2
C
n = 4, l = 3, ml = 0, ms = +1/2
D
n = 1, l = 1, ml = 0, ms = +1/2
Correct Answer
Option A
Detailed Explanation
According to the rules of quantum numbers, the azimuthal quantum number l must be less than n. Therefore, option A is valid as l = 2 is less than n = 3, while the other options either violate this rule or have invalid quantum numbers.
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