Atom Timeline

Gracie Sarchet, 5th period.

The Anciant Greek Model

In 400 BC Demorietris theory was a partial could be cut into smaller partials called Atoms, but Aristtoe said the matter would come in 4 elements called Earth, Air, Fire, and Water. He was incorrect.

Dalton Model

John Dalton stated that all matter is made of atoms, atoms cannot be divided, and atoms are made of the exact same kind of atom. None of the atoms disappeare and rearrange in different orders. This is the beginning of Law of Conservation.

Some more info

Last, but not least.

"Electron Cloud" Model

Broglie and Schrodinger discovered that the electrons were located in clouds not just around the nucleus.