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Passing/partial resemblance to the nineteenth-century understanding of atomic structure
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Proposed a mechanical universe with small solid masses in motion
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Proposed an "atomic theory" with spherical solid atoms based upon measurable properties of mass
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introduced the concept of the electron
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Discovered methods of separating the atom
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Founder of the quantum theory
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Developed a rough atom structure
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Determined the value of the charge of the electron
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Predicted that the neutron existed
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Established that the nucleus is very small, very dense and positively charged
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Arranged the Periodic Table in order of their atomic numbers
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Discovered neutron existed