atoms history part 2

atoms history part 2

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  • Determined the mass to charge ratio of electrons and that electrons are 2000x smaller than protons
  • 1868
  • I found that the particles were occasionally deflected
  • 1871
  •  I discovered the existence of a subatomic particle with a mass equal to a proton but no charge
  • 1851
  • I proposed that atoms had energy levels on which electrons move around the nucleus
  • 1885
  • I determined that it was impossible to know the location and speed of an electron around the nucleus at any one time
  • 1887
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