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History of the Atom Research Project

I wonder how small you really aren't

Vanessa H

on 29 October 2012

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Transcript of History of the Atom Research Project

Democritus Aristotle John Dalton Joseph John Thomson Ernest Rutherford Niels Bohr Schrodinger 460 B.C. 340 B.C. 1803 1898 1911 1913 1930 Work Cited History of the Atom Research Project By Vanessa Hoffmann Can matter be broken down forever or is there a stopping point? Observation Atoms can not be created/ destroyed, they have certain mass and properties, and if you combine two atoms you get a compound Experimental Observations He discovered electrons and protons and believed the atom looked like the plum pudding model Used Cathode Rays and found that protons and electrons were what caused the light arc. 500 B.C. 1800 1900 0 A.D. "Rutherford's Experiment and Atomic Model." Rutherford's Experiment and Atomic Model. N.p., n.d. Web. 26 Oct. 2012. <http://www.daviddarling.info/encyclopedia/R/Rutherfords_experiment_and_atomic_model.html>. Thought everything was made up of earth, fire, water, and air. Observation "Aristotle Atomic Theory." Universe Today. N.p., n.d. Web. 26 Oct. 2012. <http://www.universetoday.com/62400/aristotle-atomic-theory/>. Discovered that atoms have a nucleus Shot H+ in to thin gold foil and then the H+ came back in some cases and went through the foil in other cases no being reflected like originally thought. "History of Atoms." History of Atoms. N.p., n.d. Web. 26 Oct. 2012. <http://www.nobeliefs.com/atom.htm>. "A Brief History of Modern Atomic Theory." Chemistry Tutorial : History of Atomic Theory. N.p., n.d. Web. 26 Oct. 2012. <http://www.ausetute.com.au/atomichist.html>. "HISTORY OF THE ATOM FROM DEMOCRITUS TO BOHR AND SCHRÃDINGER." HISTORY OF THE ATOM FROM DEMOCRITUS TO BOHR AND SCHRÃDINGER. N.p., n.d. Web. 26 Oct. 2012. <http://profmokeur.ca/chemistry/history_of_the_atom.htm>. "Atomic Models." Atomic Models. N.p., n.d. Web. 26 Oct. 2012. <http://cronodon.com/Atomic/AtomTech2.html>. "Chemistry Project :Â The History Of The Atom." Chemistry Project :Â The History Of The Atom. N.p., n.d. Web. 26 Oct. 2012. <http://hi.fi.tripod.com/timeline/>. Hsu, Tom. "Inside an Atom: Solving the Puzzle." Foundation of Physical Science. 3rd ed. N.p.: n.p., n.d. N. pag. Print. Introduced the electron cloud Thought electrons traveled in a orbit around the nucleus and that low level electrons were closer to the nucleus than high level electrons Expanded on Rutherford's theory Found that you couldn't pin point an electron's exact location.
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