43. 'All the four quantum numbers of two electrons in an atom are not the same.' It is the law of – A.Hund's rule of maximum multiplicity B.Exclusion Principle of Pauli C.Uncertainty Principle of Hiesenberg D.Avogadro's Law
Answer: Option B Solution: The Pauli Exclusion Principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.
