Chemistry

Not sure if I put this in the right spot.

Chemistry

The main characters of the development of the atom would be Democritus, John Dalton, Chadwick, and JJ Thompson. Democritus developed the coined the term "atom". He thought that one could break particles down and keep on doing so until it came to it's simplest form, calling them atoms. John Dalton was the first to propose the existence of atoms. Chadwick discovered the neutron and Thompson discovered the electron. The thing that made them different was that they worked with different materials since not all of them had the resources another person might have had. The time period between all theses scientist played a great roll because technology had a play in it and the most important thing was that they can study and research was is wrong and what can be right. Of course it mattered as to whether they had money and where they grew up. Without those subjects playing a role on the scientists life, they would probably and most likely go into a different profession that interests them.
The atomic theory is still a theory because it hasn't been proven every time it has been tested. It matters as to why we understand the structure of the atom because one can classify and understand properties better if we know how many protons, electrons, and neutrons reside within the atom.