The discovery of various phenomena has led to a recognition of the fact that the chemical atom is an individual which again is itself made up of several units into a selfcontained whole.
Johannes StarkIt is more likely that more than a century will pass before we know the structure of the chemical atoms as thoroughly as we do our solar system.
Johannes StarkAt the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion.
Johannes StarkThe removal of an electron from the surface of an atom - that is, the ionization of the atom - means a fundamental structural change in its surface layer.
Johannes Stark