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350
Aristole
Opposed the atomic theroy.He didnt believe in the atom he thought they were differ sizes. "https://www.gaggle.net/gaggleVideoProxy.do?op=view&v=56f60323e745304a6deba9eeba2c9245" -
400
Democritus (BC)
He was the first to say they existed, and he said that that every single thing was a atom. He cut a pice of bread in half "https://www.gaggle.net/gaggleVideoProxy.do?op=view&v=56f60323e745304a6deba9eeba2c9245" -
Dalton
the first modle of showed that the atoms were made up of tiny little partices. He used his imagination on how he thoght they look like. "https://www.gaggle.net/gaggleVideoProxy.do?op=view&v=56f60323e745304a6deba9eeba2c9245" -
Thomson
He discoverd that the elements are in an atom and he discoverd that eletron are small too. "https://www.gaggle.net/gaggleVideoProxy.do?op=view&v=03ed97f7a2138f462cbbeaeff5296a6f" -
Rutherford
That tje nucleas was separted with electroms around the atoms. He made the gold foil project with plumb pudding. "https://www.gaggle.net/gaggleVideoProxy.do?op=view&v=03ed97f7a2138f462cbbeaeff5296a6f" -
Bohor
he said that the electrons are arraged in the concentric circular orbit around the nuclars amd said the electonrs jump betwwen energy levels. " http://www.iun.edu/~cpanhd/C101webnotes/modern-atomic-theory/rutherford-model.html" -
Heisenberg and Scchrodinger
he found that the electrons flost rather then them having a set. He built of off Bhors modle. "http://www.nobelprize.org/nobel_prizes/physics/laureates/1933/schrodinger-facts.html"
