What is internal energy? Is internal energy a state function?

Solution: In order to describe each electron in an atom in different orbitals(the region where probability of finding the electron is maximum), we need a set of four numbers known as quantum numbers. These are discussed below: Principal quantum number(n): This quantum number determines the main energy level in which the electron is present. Azimuthal quantum n umber( ): This quantum number determines the angular momentum of the electron. The v alue of gives the subshell in a given principal energy level to which an electron belong. It can have positive integer values ranging from zero to (n - 1) where n is the principal quantum number. The various subshells or values of l are also designated by letters s, p, d, f,.....as Value of l 0 1 2 3 4 5 …….. Designation s p d f g h ………. Magnetic quantum number(m): This qlntum number describes the behaviour of electron in a magnetic field. It gives the number of orbitals...