👉 Copper periodicity is a concept in quantum mechanics that describes how the frequency of a system changes over time. It refers to the number of times a system's energy levels are excited or de-excited per unit time, which can be thought of as the "frequency" of the system. In the context of quantum mechanics, copper periodicity is often used to describe the behavior of certain types of atoms and molecules. For example, in the hydrogen atom, the frequency of the electron's energy level

coperiodic