Mrs. Foys's chemistry project
Created by scifigal217 on Oct 2, 2008
Last updated: 11/13/09 at 03:09 AM
Discovered Neutrons, which has nearly the same mass as a proton. Found that neutrons were also in the nucleus.
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Worked on the first atomic bomb and helped increase the public's knowledge on the atomic structure.
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Has a charge of +1, inside the atom's nucleus and was discovered by Rutherford.
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Found that the mass of an electron is 1/1840 the mass of a hydrogen atom and that the charge of an electron is -1
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JJ Thompson realized that atoms are neutral by comparing it to negatively charged plums (electrons) in a positivley charged pudding.
http://nobelprize.org/educational_games/physics/quantised_world/structure-images/fig2b.gif
Discovered X-Rays, which were rays of energy that was so powerful, it could pass through skin.
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Found that cathode rays were actually smaller then an atom and were negatively charged. He renamed the rays "electrons."
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Created a cathode ray tube. The ray would flow across a tube in a glowing fashion, when connected with a voltage. These tubes became the television tubes.
http://www.csvt.qc.ca/patriotes/sciences/scp4/photos_m1/page1.html
Was famous for the "gold foil experiment." Proved that the plum pudding model of an atom was wrong and learned that the atom has a small, positivley charged nucleus.
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Found 2 elements-Radium and Polonium. She also was the first person to use the word "radiation" to describe the energy source that came from radioactive isotopes.
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A British school teacher. Through experimentation, he found that matter is always made of atoms, and that all of the atoms in a specific element have the same size, mass, and chemical properties. He also said that when atoms are rearranged the result is new compounds.
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Because he did so much in the field of chemistry he was nicknamed the "father of modern chemistry." He created the metric system, and the Law of Conservation of Mass. He also made the first list of elements and named Oxygen and Hydrogen.
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Gerber established experimental design in the field of chemistry. Alchemists tried to make gold out of other elements.
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He was the first person that said atomos (which are tiny particles that can't divide further, destroyed or created) made up matter.
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He believed that either fire, water, air, or earth made up matter.
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