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everything is made of indivisible particles called atoms
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everything is made of atoms. they cant be broken down. atoms of each element are unique
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discovered electron. pudding model
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atoms are mostly space w/ small dense pos nucleus
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organized electrons into energy levels
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finds 1st evidence of proton
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comfirms photons as particles
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propoes matter has wave properties
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formulates exclusion principle for electrons in an atom
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demonstrates energy & mass are conserved in atomic processes
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developes wave mechanics
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formulates uncertainty principle
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combines quantum mechanics & special relavitivty to describe electron
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suggests neutrino to explain continuous electron spectrum for beta decay
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discovers neutron
