Bohr 2

Atomic Model Timeline

  • 101


    HIs theory states that every thing is made of indivisible atoms and their is an infinite amount of them.
  • John Dalton

    John Dalton
    very small atoms indestructablewith no surface
  • J. J. Thomson

    J. J. Thomson
    Based on their behavior some materials are suppost to have a positive and negative charge and pull away from eachother.
  • Hantaro Nagaoka

    Hantaro Nagaoka
    he thought atoms had a nucleus electrons move like saturn in orbit.
  • Ernest Rutherford

    Ernest Rutherford
    atoms have a density positively charged nucleus electrons move in the space around the nucleus
  • Niels Bohr

    Niels Bohr
    electrons move in circle orbit at definite distances from the nucleus
  • Erwin Schrodinger and Werner Heisenberger

    Erwin Schrodinger and Werner Heisenberger
    they developed mathematical equations to help in the creating of the electron cloud model
  • James Chadwick

    James Chadwick
    He confirmed the existence of neutrons which dont have any charge and atom nuclei contain neutrons and positively charged protons