(JOHN)

> Thomson's notion of the electron came from his work with a nineteenth century scientific curiosity: the cathode ray tube. For years scientists had known that if an electric current was passed through a vacuum tube, a stream of glowing material could be seen; however, no one c ould explain why. Thomson found that the mysterious glowing stream would bend toward a positively charged electric plate. Thomson theorized, and was later proven correct, that the stream was in fact made up of small particles, pieces of atoms that carried a negative charge. These particles were later named electrons.__
 * History of the Atom** (5pts)
 * Find out the important scientists who contributed to our current knowledge of the atom
 * [].
 * 1) JJ THOMSON AND JOHN DALTON
 * Find out the important experiments that were used to make breakthrough discoveries.
 * 1) __http://www.visionlearning.com/library/module_viewer.php?mid=50
 * Include years of each discovery/experiment so we can get an idea of how long this process has taken.
 * 1) During the 19th Century


 * Atomic Structure** (5pts)

>> [] >> Protons, Electrons, Neutrons, Nucleus. >> [] >> Protons, Electrons, and Neutrons. >> [] >> Protons and Neutrons are in the nucleus and Electrons orbit the nucleus. >> [] >> They would have a different number of protons, electrons, and neutrons. For a bonus point:
 * What are the different parts of the atom?
 * What are the different particles that make up the atom?
 * Where are they located?
 * What makes atoms of different elements different?
 * 1) Add a comment to someone's page through the discussion tab.
 * 2) Add a picture to your page