Quantum randomness 3. Electrons do not move along a well defined path. Their motion is not strictly determined. Electrons in an atom behave as standing waves. Only certain wavelengths are possible for standing waves.
H is an operator.
E is the energy of the electron. Y is the wave function of the electron and describes the properties of the electron. It also tells us where the electron can usually be found when in a given energy state. You can think of an orbital as an electron cloud where the electron density is higher some places than others. Orbital energies Electron Configurations 1.