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John Dalton
John Dalton was one of the first scientists to decide that all matter is made up of small particles, or atoms. He began recording in 1787. -
JJ Thomson
JJ Thomson was a british physicist who discovered electrons in 1897 in a seires of experiments. His model was later corrected, but was relied on. -
Albert Einstein
Albert Einstein published a number of scientific papers that changed physics. -
Ernest Rutherford
Ernest Rutherford discovered alpha rays and nuclaer structure of an atom in 1908. He is considered the father of nuclaer physics. -
Neils Bohr
In 1913, Bohr made a atomic model that focused on electrons. He developed the electron cloud model. He actually made a nucleas and surrounded it with electrons to prove himself. -
Electron Cloud Model
The Electron Cloud Model is used to predict the location of electrons around the nucleas. Scientist began to use it in the mid 1920's and it is now one of science's biggest tools. -
Erwin Schrödinger
Erwin Schrödinger developed an Electron Cloud Model in 1926. -
Aristotle
Aristotle didn't believe in the regular atomic theory. He believe there were four elements that made the earth and matter. They were: Earth, Water, Fire, and Air.
