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showed first experimental evidence to support his model of the atom (1st atomic theory) tiny invisible particles; solid mass
developed a model of the atom in which a pos mass was embedded with neg electrons- "plum pudding model"
knew from the start that his model of the atom could not exist- nuclear model- protons and neutrons in nuceleus surrounded by neg electrons
developed a model of the arom that was like our solar system- circular orbits around the nucelus
his model treats the electron as behaving like a wave, not a particle, as it moves around the nucleus
developed a theory in which you could not tell both the speed and position of the electron at the same time
described how particles can also have a wave nature
showed that energy changed in discrete units called quanta
described the wave nature od light and has w unit named after him
described the particle nature of light (photoelectric effect) and did not believe om quantum mechanics
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