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430
Aristotle, BC
He didn't believe the atom existed & that everthing is made out of the 4 elements of earth.
had NO proff Allaih , Rhett. "Science Blogs." Dot Physics. N.p., N.d. Web. 26 Feb. 2014. -
430
Democritus,BC
He discovered that matter is made up of tiny particles called atoms. atom= indivisibial in Greek
He cut an an objuct until it couldn't be cut anymore. Allaih , Rhett. "Science Blogs." Dot Physics. N.p., n.d. Web. 26 Feb. 2014. http://scienceblogs.com/dotphysics/2009/09/04/the-development-of-the-atomic-model/. -
Dalton
He thought that the atom has a nucleus that contained the protons. He also created elements to go on the priodic table that he created. Allaih , Rhett. "Science Blogs." Dot Physics. N.p., N.d. Web. 26 Feb. 2014. -
Thomson
He found that electrons lisome positive matter. HE studied cathode rays which is how he found the electrons surrounded by positive matter. "Timeline of the Atom." : Erwin Schrodinger. Web. 06 Mar. 2014. http://timelineoftheatom.blogspot.com/p/erwin-schrodinger-1926.html. Allain, Rhett. "Science Blogs." Dot Physics. N.p., n.d. Web. 6 Mar. 2014. http://scienceblogs.com/dotphysics/2009/09/04/the-development-of-the-atomic-model/. -
Rutherford
He found the most of the alpa particals at gold foil. As it moved passed the gold foil it made a sound. Allain, Rhett. "Science Blogs." Dot Physics. N.p., n.d. Web. 6 Mar. 2014. http://scienceblogs.com/dotphysics/2009/09/04/the-development-of-the-atomic-model/. -
Bohr
He broufht up the conpet of light energy levels b/c he tought that every element has a different light energy level. Allain, Rhett. "Science Blogs." Dot Physics. N.p., n.d. Web. 6 Mar. 2014. http://scienceblogs.com/dotphysics/2009/09/04/the-development-of-the-atomic-model/. -
Heisenberg And Schrodinger
They found out that electrons have no momentum of dirction. Can NOT measure there locations & movment patterns. Allain, Rhett. "Science Blogs." Dot Physics. N.p., n.d. Web. 6 Mar. 2014. http://scienceblogs.com/dotphysics/2009/09/04/the-development-of-the-atomic-model/.
