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The top documents tagged [explanation of alpha]
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explanation of alpha
Development of the Atom A brief review of the history… 20map.htm.
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Rutherford’s Gold Foil Experiment Rutherford’s Apparatus beam of alpha particles radioactive substance gold foil circular ZnS - coated fluorescent screen.
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II. The Structure of Atoms Atom – smallest particle of an element that retains the chemical properties of that element. All atoms consist of 2 regions.
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Joseph John Thomson, an English scientist, provided the first hint that an atom is made of even smaller particles. He observed that there are NEGATIVELY.
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