Answer:
C. Pauli Exclusion Principle
Explanation:
Pauli's exclusion basically suggests that you cannot label two electrons as having the same quantum numbers.
The principle is stated as "no two electrons in an atom can have the same set of four quantum numbers".
- It indicates that no two electrons can spin in the same way.
- This limits the number of electrons that can reside in an orbital to two and with opposite spin.
