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histheory revovleved around the atoms that are present in the atmosphere. He learned from the author Leucippus, also Aristotle.
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discovered that oxygen and carbon combined to make two compounds that had thier own weight ration of oxyygento carbon
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used a small drop of oil to measure the incremental charge of an electron. he also showed that the electron charge was a single value.
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Was a proffessor at the French Academy of Science.
EXPERIMENT: wrapped a photographic plate with emulsion with two sheets of thick black paper, so that the plate itlsf is out of the sun, then you put it into the sun wich results in a black neggative. this is how he helpped in the development of atomic history. -
Discovered the electron. He did this using experiments designed to study electric discharge. He also sugesttested that the atom should be a sphere.
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described that the atom had a central positive nucleus surrounded by neggative electrons. Rutherford discoverd that most of an atom is made up of empty space
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the Bohr Model was a much simpler version of quantum mechanics. Demonstrated positive and electric charges
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A probability area in an electron might be located in.
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in 1932 Chadwich discovered the third type of subatomic particle
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figured out how to find the atomic mass of an atom
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384-322 BC, was tutored by Alexander the Great, he beleived in the four elements air, earth, water, and fire.
