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The History of the Atom
Updated: 10/10/2019
The History of the Atom
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Storyboard Text

  • Democritus
  • I think that everything is made of tiny particles, called Atomos, that cannot be divided, created, or destroyed.
  • You're Crazy! Everyone knows that everything is made of either fire, water, air, or earth.
  • Aristotle
  • John Dalton
  • Democritus was right! I will call his idea the Atomic theory. I'll even make a model to show my idea.
  • J.J. Thomson
  • I just performed the Cathode Ray experiment and found out that there are small particles called electrons orbiting the atom
  • Ernest Rutherford
  • Aside from negatively charged electrons orbiting the atom, there are also positively charged protons in the center nucleus.
  • Aside from that, there are neutrally charged neutrons in the nucleus along with the protons.
  • James Chadwick
  • Electrons move in circular orbits around the nucleus. They also have more energy the farther they are from the nucleus.
  • Niels Bohr
  • Erwin Schrodinger
  • Niels Bohr is funny! Electrons move in waves, not paths.
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