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If you look around, everything that you see is matter, which is now known to be made up of atoms. The

chairs, board, pen, and the paper are all made up of varying combinations of atoms. Even you yourself or the

air that you breathe are composed of such particles. Atoms are therefore considered the building blocks of

matter.

How did the concept of atoms start? Let us briefly trace the historical perspective of the discovery of an

atom, beginning with the existence of the elements in the universe as explained by renowned physicists on the

basis of cosmology, and the observations of alchemists, great philosophers​