Atomic

  • 322

    Aristotle

    Aristotle
    Only 5 elements, viewed as a divine substance.
  • 370

    Democritus

    Democritus
    "All matter is made up of tiny pieces". Atoms cannot be created.
  • Antoine Lavosier

    Antoine Lavosier
    Matter in reactions can be rearranged.
  • John Dalton

    John Dalton
  • Sir JJ Thompson

    Sir JJ Thompson
    Fundamental units were 1000 times smaller than an atom.
  • Sir Earnest Rutherford

    Sir Earnest Rutherford
    -Alpha, Beta rays -Radioactive decay
  • Neils Bohr

    Neils Bohr
    Proposed a theory of a hydrogen atom.
  • Robert Millikan

    Robert Millikan
    Measured the charge of a single electron
  • Albert Einstein

    Albert Einstein
    Release of atomic energy and develeoped theory of relativity.
  • Aufbav Principle

    Electrons will fill the lowest part of the shell.
  • Friedrich Hund

    Known for atoms molecules
  • Erwin Schrodinger

    Discovered the wave equation
  • Otto Hahn, Lise Meitner, and Fritz Strassmann

    Helped develop nuclear weapons and energy
  • James Chadwick

  • Wolgang Pauli

    Made lots of discoveries in physics