👉 Comptonia is a concept in physics, specifically in quantum mechanics, which describes the behavior of particles as they move through matter. The term was coined by physicist Erich Compton in 1923 to describe how electrons are affected when they interact with matter. In this context, "compton" refers to the interaction between an electron and a photon, while "ion" refers to the motion of charged particles such as protons or neutrons within matter. Compton's theory is