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For the third shell (n = 3) and the p subshell (l = 1), the magnetic quantum number m = -1 can describe two electrons in the same orbital. Which of the following statements is accurate?

1. The value m = 0 is specific to the Px orbital, but Py and Pz orbitals can have values of ±1.
2. The value m = 0 is specific to the Py orbital, but Px and Pz orbitals can have values of ±1.
3. The value m = 0 is specific to the Pz orbital, but Px and Py orbitals can have values of ±1.
4. The value m = 0 applies to all Px, Py, and Pz orbitals.

Correct answer: The value m = 0 applies to all Px, Py, and Pz orbitals.

Solution

The magnetic quantum number (m) determines the orientation of orbitals, and for p orbitals (l = 1), m can take values -1, 0, or +1. These values are not fixed for specific orbitals (Px, Py, Pz) but are shared among them.

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