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The first atomic model that was developed by John Dalton. Solid spheres made from wood that represent the state of an atom.
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The pudding model of the atom was made in 1904 by JJ Thompson. The concept behind the creation was the theory that a positively charged atom was embedded with negative charges and remained entirely neutral.
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A nuclear model was made by Ernest Rutherford which described the atom as a positively charged core. The study showed the atom as mostly empty space with a positively charged nucleus.
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Described as a planetary system in which electrons orbit the nucleus. Which creates fixed energy.
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As an extension to Bohr's model, Schrodinger used his theory to create mathematical equations on electrons. Proposed in 1926.