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Question:

What is the maximum number of electrons that can be associated with the following set of quantum numbers?

2

10

4

6

Solution:

We know that electrons have spin quantum number ms = ±1/2. According to Pauli's exclusion principle, no two electrons can have all four quantum numbers the same. Thus one electron has quantum numbers as: n=3; l=1; m = -1; ms = +1/2 And other electron has quantum numbers as: n=3; l=1; m = -1; ms = -1/2 Thus, 2 electrons can be associated with a given set of quantum numbers. Hence, the correct option is 2