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He first proposed the existence of an indivisible particle.
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He was the first to introduce the atomic theory saying that atoms were solid spheres, and that different spheres made up elements.
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Thompson was the discoverer of the Electrons. After discover this, at 1897 he concluded that the atom was a positive charge sphere with some Electrons (negative charges) that were stuck in it.
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Rutherford and his student, Marsden, published his atomic theory describing the atom as having a central positive nucleus surrounded by negative orbiting electrons
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He Explained how the Electrons are moving constantly around the atom's nucleus where there are Protons.
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Edwin Schrodinger stated that rather than electrons being distributed within an electron configuration of shells and energy levels, they were arranged in orbitals which were systematically distributed within Electron Clouds.
