👉 In physics, a symmetry is an operation that leaves all of the particles in a system invariant. A symmetry can be defined as a property or transformation that allows for a system to remain unchanged under certain transformations. Symmetries are fundamental concepts in quantum mechanics and have numerous applications in fields such as chemistry, biology, and engineering. In nonsymmetry, we refer to a system where all of the particles are not transformed by any symmetry operation. This means that the system is not invariant under any transformation