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Quite a few scientists have helped to create and extend ideas on what an atom is and what its components are. One of these discoverers, John Dalton, developed the first modern atomic theory. Although much of his theory is still true today, one point was disproved by Ernest Rutherford.
Dalton's atomic theory had several parts to it. He believed atoms were indivisible, or impossible to break down into smaller particles. Also, he said elements are all consisted of atoms and that the atoms of each element are different from each other. All of the atoms of the same element are identical, but different from atoms of other elements. According to Dalton's theory, these different elements can be chemically merged or physically mixed to make compounds. Also, when forming chemically combined compounds with chemical reactions, atoms cannot be created or destroyed.
Earnest Rutherford preformed en experiment later that proved an idea of Dalton's wrong. With his gold foil experiment,......

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Approximate Pages: 2 (250 words per double-spaced page)

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