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Proposed the idea of the atom. He argued that the world consisted of an infinite amount of atoms. he thought the atom looked like a circle.
"Democritus Atom." Universe Today. N.p., 22 Mar. 2010. Web. 23 Feb. 2015.
"What Democritus Thought." Democritus Model. N.p., n.d. Web. 23 Feb. 2015. -
He belived that matteer is invicible atoms. And that atoms are arranged in different nixtures and compounds. He used a method that was made up of types of "flowers". Claimed that it looked like a biillard ball.
"John Dalton's Atomic Model." Universe Today. N.p., 01 Dec. 2014. Web. 23 Feb. 2015. -
He discovered that eectrons are in models. And that atoms have tiny negatively charged particles inside that are electrons. Claimed it looked like Plum-Pudding.
"GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 23 Feb. 2015. -
Rutherford tested Thomson's hypothesis by devisinng his " Gold Foil" experiment. He wasn't sure how the protons and electrons were arranged within the atom.
"GaggleTube Video - Discovery of the Nucleus: Rutherford's Gold Foil Experiment." GaggleTube Video - Discovery of the Nucleus: Rutherford's Gold Foil Experiment. N.p., n.d. Web. 23 Feb. 2015. -
He belived that electrons existed in set orbits around the nucleus. He gathered evidence from plamck's Quantum theroy.
Stanley, Matthew. "Niels Bohr." Niels Bohr. N.p.: n.p., n.d. Web. 19 Feb. 2015. -
The atoms sketch out the shape of an object in an irregular motions. They used the Two-Slit experiment. Claimed that it looked like quantim mechanical model orbital.
"Schrödinger's Atom." Schrödinger's Atom. N.p., n.d. Web. 23 Feb. 2015.
