Question

Who was the first Scientist to describe Atoms and its constituents ​

Answer 1

Answer:

There are many scientists the particular scientist is not given anywhere

Answer 2

In the early 1800s, the scientist John Dalton noticed that chemical substances seemed to combine and break down into other substances by weight in proportions that indicated that matter is indeed made of atoms as the ancient philosophers suspected. Shortly after 1850, certain physicists developed the kinetic theory of gases and of heat, which mathematically modelled the behavior of gases by assuming that gases are made of particles. In the early 20th century, Albert Einstein and Jean Perrin proved that Brownian motion (the erratic motion of pollen grains in water) is caused by the action of water molecules — this third line of evidence silenced remaining doubts among scientists as to whether atoms and molecules are real. Throughout the nineteenth century, some scientists had cautioned that the evidence for atoms was indirect, and therefore atoms might not actually be real, but only seem to be real.

hope it will helpful for you