History of the atom

By devinsimon
  • 400

    Democritus

    Democritus
    He discovered the atom. It was just a theory he though tit looked like a heavy,hard ball.

  • Dalton

    Dalton
    Dalton's theory was the atomic theory and thought that all matteris composed of tiny individual elements.

  • Thomson

    Thomson
    Thomson's theory is called the Plum Pudding model and he said that elecrons are surronded by positive charges

  • Rutherford

    Rutherford
    Rutherford used the gold foil experiment adn found out the atom is a tiny heavy nucleas he tought the atom looked like a central charge surrounded by a cloud of orbiting electrons.

  • Bohr

    Bohr
    Bohr used the bohr model to discover that the atom is a small positively charged nucleaus. Bohr thought the atom looked a nucleaus surrrounded by electrons that swarm in many different orbits.

  • Heisenberg and Schrodinger

    Heisenberg and Schrodinger
    They discovered that electrons do not travel in neat orbits and they did this using the uncertainty principle. They thought a atom looks like a nucleaus swarmed by electrons.