Pauli’s Exclusion Principle

If you are aware about the principal quantum numbers and energy levels, you are also aware about to the orbitals (s, p, d and f). These orbitals represents the energy state or energy level of an atomic system. When we talk about the Pauli’s exclusion principle we also talk about the spin quantum number. This plays a significant role to make the difference in quantum states. For any two electrons in a quantum state, all quantum numbers couldn’t be same. If any three n, l m_l are same then m_s will be definitely different.