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The Alchemists used Aristotle's idea about matter and created experiments and activities with them.
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He developed a metaphysics of forms,
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He theorized that all material bodies are made up of small atoms.
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Robert Boyle created Boyle's Law, which stated that at a constant temperature, the pressure P of a gas varies inversely with it's volume V.
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The modern day atomic model was helped developed by Lavoisier.
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Created Dalton's Atomic Theory which stated that all matter was composed of atoms.
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He invented the periodic table of elements.
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She discovered the elements radium and polonium.
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Said all atoms contain tiny negatively charged subatomic particles or electrons.
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Einstein mathematically proved existence of atoms.
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Millikan precisely determined the magnitude of an electron's charge.
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Rutherford discovered that all atoms have a small charged nucleus surrounded by empty space.
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Neils Bohr proposed the theory for the hydrogen atom.
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Mosley discovered the relation between wave length and atomic number.
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created a mathematical model for the distribution of electrons in an atom.
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He proved the existence of electrons.