Based on his work with atmospheric gases, John Dalton, an English scientist and meteorologist, is credited with developing the first modern atomic theory. Is it fantastic? The scientific hypothesis that matter is made up of tiny bits called atoms is known as atomic theory. The origins of atomic theory can be traced back to an ancient intellectual tradition known as atomism. According to this theory, if you cut a lump of stuff into smaller and smaller bits, you would ultimately reach a point where the parts can no longer be sliced into smaller pieces. These hypothesised ultimate elements of substance were given the name atoms by ancient Greek philosophers, which meant "uncut." Scientists had created reasonably extensive and precise theories for the structure of matter by the early twentieth century, resulting in more precisely defined categories for the microscopic invisible particles that make up ordinary matter. The basic component that makes up a chemical element is now known as an atom. Physicists realised around the turn of the century that the particles chemists named "atoms" are actually agglomerations of much smaller particles (subatomic particles), but scientists preserved the label out of habit. The term "elementary particle" is now applied to particles that are indivisible.

Priya R Nair

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