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made observations and was a student at socrates in greek named the atom atomos
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made observations as well but made these rules
1: everything is made of atoms
2: cant be broken down
3:atoms of each element are unique -
mathmatically proved atoms true
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cathode ray tube experiment also the pumb pudding/cookie modle
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gold foil experiment
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uncertainty principle: you can never know exactly where a electron is located
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organized electrons into levels
