The Atomic Theory

The Theory of the atom, or Atomic Theory, is the theory that all states of matter were composed of tiny particles called atoms. It was formulated by Democritus, and later worked on by Lavoisier and Dalton.


1.
The main people behind the development in the atom was Antoine Lavoisier who developed the law of conservation of mass which states mass cannot be lost through reactions. The other person who helped the development was John Dalton who said that one can combine two elements to create a more than one compound. He also said that each chemical element is composed of atoms that cannot be altered or changed. Another is J.J. Thompson who was the man who discovered the electron. Then Ernest Rutherford said that most of the atoms mass comes from the middle part of the atom also known as the nucleus.


2.
They all developed parts that others could not find or did not think of. They also helped proved that there was actually a small particle the composed all states of matter. They also showed that it wasn't just a whole particle but three different types of sub-particle inside the atom. They also describe how the atom worked so they could work further into learning about how the atom helped piece the world together.


3.
The only thing that made them different from each was how they went about and did the experiments, and what they thought the atom was composed of other than that nothing. Maybe a motive or a cause.