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Was the first person to investigate the basic principle of the atom.
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He disovered the 1st atomic theory.
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He didn't believe in the atomic theory.
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He said that atoms are held together by attractions or forces.
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Did the Atomic Theory experiment. Said: 1. All matter is made up at tiny particles called atoms. 2. All atoms of a given element are alike but are different. 3. Compounds are formed when atoms of different elements combine. 4. A chemical reaction involves a rearrangment of atoms, not a change.
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He discovered radioactivity.
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Had the Cathode Ray experiment. He discovered electrons by the plum pudding model.
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He had the Oil Drop experiment. He found a charge in individual electrons.
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Helium nuclei were fired through a thin gold sheet into a zinc sulfide and it proved that part of the atom had a positive charge and that it had mass.
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His atomic model was The Nuclear Atom.
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Theory on electrons and that electrons are on an orbit.
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In the Mass Spectrograph experiment he found that there was isotopes
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His experiment was the Quantum Mechanical Model of the Atom. He used math equation to find the probability on election would be in a certain position.
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He discovered the Neutron.