👉 Equisonance is a quantum mechanical concept that describes how atoms, molecules and subatomic particles interact with each other. It involves the measurement of the energy states of these particles, which can be quantized in terms of their spin and orbital angular momentum. In classical physics, an atom or particle has definite energy levels corresponding to different values of its spin (spin-orbit coupling) and orbital angular momentum quantum number (Lz). However, when a particle interacts with other particles, the system becomes ent
