Atoms

Timeline of Atoms

  • John Dalton

    John Dalton
    Thought that each element is made of atoms that are basicly all alike. He also thought that different elements have atoms of different mass.
  • J.J. Thomson

    J.J. Thomson
    Discovered elctrons and that a atom is positivly charged. His model can be disrciped as a muffin with scattered components.
  • Hantaro Nagaoka

    Hantaro Nagaoka
    The atom has a large sphere in the center and is positivly charged. A metaphor to his model is like the planets revolving around the sun.
  • Erenest Rutherford

    Erenest Rutherford
    Atoms are relativly empty space adn the electrons orbit around a positivly charged nucleus.
  • Erwin Shroedinger

    Erwin Shroedinger
    The nucleus contains protons and neutrons , and the electrons look like spinning clouds.
  • Present day model

    Present day model
    Electrons make a negativly charged cloud around the nucleus. It is nearly impossible to giv e a location of a given electron.