Chemistry & Physics. Chemistry 301: The Development of the Atomic Theory. Season 1 Episode 301 | 21m 19s. The terms theory and model are defined, and students learn how a theory remains valid.

Democritus most likely built his theory of atoms upon the work of past philosophers, according to Andrew G. Van Melsen, ... Several other scientists furthered the atomic model, ...

The ancient thinker Democritus is considered by many to be the father of modern science and is known for his theory that everything is made of atoms.

The ancient Greek philosopher Democritus theorized the existence of atoms by wondering what would happen if you cut an apple into smaller and smaller pieces until you reached a point where the ...

One hundred years ago, Ernest Rutherford decided to shoot some stuff at atoms and toppled then-current atomic theory. Physicist and blogger Rhett Allain walks through the rise of six atomic models.