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This is the year Atomic Theory was created by the scientist John Dalton, who discovered it after experimenting with the weights of elements. He theorised that the atom was a small indestructible ball, with different sizes and kinds composing elements such as hydrogen and oxygen.
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This is the year when the scientist Joseph John Thomson discovers the existance of the electron, theorising that it was positively charged matter with electrons scattered through it.
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This is the year in which Ernest Ruthford discovered that the electron is seperate from the nucleus of the Atom.
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This is the year in which the scientist Niel Bohr discovered that electrons are in stable positions relative to the nucleus depending on energy level.
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This is the year in which the scientist James Chadwick discovered and proved the existance of the neutron in the atom, thus completing the Atomic Model.
