Quantum Mechanics in Orbitals

In atomic physics in quantum chemistry, the electron configuration is the distribution of electrons of an atom or a molecule. The most widespread application of electron configuration in real life is in the rationalization of chemical properties. Huns Rule says that electrons unoccupied first on the same energy level must be doubled up unless they have to be left alone. All right, so what are the other principles in terms of electron configuration? Well, the next one I want to talk about is called Huns Rule for hybridization.