According to democritus "When matter is divided into smaller and smaller particles, ultimately a stage is reached when the particles cannot divide further into smaller particles. These tiny particles are called
All matter is made up of minute particles. Atoms were considered to be the tiniest particles that cannot be divided further. The term 'atom' is derived from a greek word 'atomos' which means 'indivisible'. Atoms can, however, be broken into smaller particles: electrons, protons, and neutrons. But, the atom is the smallest particle which has the property of the element. Hence, atoms are the smallest unit of a matter.