Democritus said that everything is made up of very small particles. Very small and can not be seen, these tiny particles will gather them together in different ways to form a very individual thing. For particle itself has not changed and can not be split into smaller parts again. Democritus named this particle the "atom from the Greek atomos, which means that. "Do not be divided any more," according to his comments atom is the smallest piece of matter that can be fixed