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The Alchemists discovered zinc and metallic arsenic
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He theorized that all material bodies are made up of indivisibly small “atoms.”
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he invented the field of formal logic
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theoretical thought experiments to predict or postulate new concepts.
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as the person who discovered that the volume of a gas decreases with increasing pressure
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atoms contain tiny negatively charged subatomic particles or electrons
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a few are violently deflected, which implies a dense, positively charged central region containing most of the atomic mass
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this fundamental discovery concerning atomic numbers was a milestone in advancing the knowledge of the atom
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contributed to atomic theory through formulating quantum mechanics in terms of matrices and in discovering the uncertainty principle, which states that a particle's position and momentum cannot both be known exactly
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Curie conducted her own experiments on uranium rays and discovered that they remained constant, no matter the condition or form of the uranium
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Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities
