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unit 1 chem. notes (Ernest Rutherford (Ernest discovered that whatever was…
unit 1 chem. notes
Ernest Rutherford
Ernest discovered that whatever was in the middle of the atom had to be bigger and had a positive charge
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Dimitri Mendeleev: Russian scientist, organized elements by increasing atomic mass. he realized they were all similar.
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James Chadwick
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he directed a high stream of energy at the proton and an unknown radiation was produced which he called a neutron
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Electrons :Elemental, negatively charged, on the outside of the nucleus
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