Two electrons in an orbital are differentiated by which of the following ?

A. Magnetic quantum number

B. Spin quantum number

C. Principal quantum number

D. Azimuthal quantum number

Answer: Option B

Solution(By Examveda Team)

Spin quantum number is the is the fourth quantum number that differentiates two electrons in the same orbital. The Pauli exclusion principle states that “no two electrons in an atom can have the same four quantum numbers. This means that no two electrons can have the same state in an atom. Each electron must have a different spin or occupy a different shell from any other.