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John Dalton's solid sphere model was also known as the Billard Ball Model. The English chemist used experiments to come up with the atomic theory of matter. 1803-1805
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JJ Thomson created the Plum Pudding Model. Atoms were made from a positively charged substance with negatively charged electrons scattered about. The looked like raisins in pudding, so he called it The Plum Pudding Model.1897-1903
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1912 Rutherford's Nuclear Model- the nucleus is very small, dense, and positively charged. Electrons surround the nucleus and most of the atom is empty space.
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The Bohr Model is a planetary model in which the negatively-charged electrons orbit a small, positively-charged nucleus similar to the planets orbiting the Sun.
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Schrödinger used mathematical equations to describe the likelihood of finding an electron in a certain position. Electrons are found in an electron cloud or orbital.
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