MCQ
Two electrons occupying the same orbital are distinguished by :
- APrinciple quantum Number.
- BMagnetic quantum number.
- CAzimuthal quantum number.
- ✓Spin quantum number.
✓
Answer
Correct option: D.
Spin quantum number.
According to the Pauli exclusion principle no two electrons can have the same set of all four quantum numbers simultaneously. Two electrons present in the same orbital can be distinguished by their spin quantum number. If one of them has $\text{a}+\frac{1}{2}$ value then other must have the $\frac{-1}{2}$value.
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