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Democritus stated that once you cut something inhalf enough times, then you won't be able to cut it anymore.
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Aristotle believed you can never end up with a particle that won't break, you can even break an atom.
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Dalton's theory was that atoms can not be cut or destroyed, they are all exactly alike, and two of them put together make a new substance.
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Electrons are located throughout the atom like plums in pudding.
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Particlesspread out quickly when they hit another substance, for example, gold foil.
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The electrons surround the nucleus.
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Niels Bohr said the electrons move around the nucleus in paths.
