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JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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The total values of magnetic quantum number of an electron when the value of n=2 is:

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Correct option: C

4

Option C (4) is correct because when n=2, l can be 0 or 1. For l=0, m=0 (1 value). For l=1, m=-1, 0, +1 (3 values). Total values = 1 + 3 = 4.

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