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Atomic Theory

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GCSE Chemistry (Atomic Structure) Mind Map on Atomic Theory, created by hannah-lewis on 17/05/2013.
hannah-lewis
Mind Map by hannah-lewis, updated more than 1 year ago
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Created by hannah-lewis over 11 years ago
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Atomic Theory
  1. John Dalton
    1. 1808
      1. "All atoms are made up of small individual particles"
        1. Atoms of the same element are identical
          1. atoms rearranged in a chemical reaction
            1. Compounds are 2 or more atoms together
            2. J.J Thomson
              1. 1987
                1. Electron
                  1. Plum Pudding
                    1. negative electrons in a sphere of positive
                    2. Atom is neutral
                    3. Ernest Rutherford
                      1. 1913
                        1. discovery of nucleus
                          1. Protons = Electrons
                            1. electrons are around a positive nucleus
                              1. protons are 2000 times heavier than electrons
                                1. most mass is in the nucleus
                                2. James Chadwick
                                  1. 1932
                                    1. neutron
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