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Dalton was the first scientist to propose the scientific theory of atoms.
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Thomson discovered electrons through work with the Plum Pudding model.
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Found that the nucleus of an atom is dense with positively charged particles. Came to these conclusions through the Gold foil experiment.
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thought that electrons orbit the nucleus in different levels of energy called shells.
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found that atoms emit energy in small amounts called quanta.
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helped discover the charge of the electron through the oil drop experiment.
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found that the nucleus of an atom is three dimensional
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Formulated the uncertainty principle and stated that you cannot determine the position and speed of an electron at the same time.
