When was the model of the atom made?

Answer 1

Democritus, an ancient Greek philosopher living around400 BC, is credited with creating the original theory of atoms. He coined the word "atomos", which means "indivisible". He stated that all matter is made up of atoms. Democritus's model of an atom consisted of a smooth, hard ball. He said that atoms are indestructible and always in motion. Democritus thought that atoms differ in shape and size. There is an infinite number of atoms and infinite kinds of atoms. Although many of his theories have since been proven false, Democritus is considered "the father of modern science".