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came up with the idea of all matter consists of atoms
and atoms are the smallest part of matter -
came up with the atomic theory
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discovered the electron
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responsible for finding the charge of a single electron
proved that subatomic particles do exist -
discovered the nucleus
theory of nucleus being positive
and negativ electrons orbiting around it -
he proposed the bohr model
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created the wave model of the atom
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he proved subatomic partincles do exist
