Famous Dead Guys Harrison Higgs

By harrison_hi
  • 101

    Demcritus 429 BC

    Demcritus 429 BC
    Year- 429 BC
    Main Contribution-thought that all things are made up of atoms
  • 102

    Aristotle 400 BC

    Aristotle 400 BC
    Year- 400 BC
    Contribution-determined that all things were made up of earth, wind, fire, and air.

  • Sir Issac Newton

    Sir Issac Newton
    Contribution-thought everything was made up of atoms

  • John Dalton

    John Dalton
    Contribution-all matter made of atoms, and that it can not be made nor destoryed
    Thought of four ideas different atoms, reactions when rearranged compound, all matter made of atoms cannot be made nor destoryed element atoms are the same.

  • Henri Becquerel

    Henri Becquerel
    Contribution- helped discover radioactivity

  • Joseph john Thomson

    Joseph john Thomson
    Contribution-found electrons via Cathode Ray Tube thought up the Plum pudding Model

  • Robert Millikan

    Robert Millikan
    Contribution-measured the charge and mass of the electron

  • Ernest Rutherford

    Ernest Rutherford
    Contribution-central positive nucleus surrounded by negative orbiting electrons

  • Niels Bohr

    Niels Bohr
    Contribution-depicted atom as small positively charged nucleus surrounded by electrons moved in circular motion. made the Bohr Model

  • Francis Aston

    Contribution-discovered isotopes of non-radioactive elements

  • Erwin Schrodger

    Erwin Schrodger
    Contribution-found that consists of nucleus and shells. Proved Bohr Model incorrect. Created formula for finding where electrons are.

  • James Chadwick

    Contribution-discovered the neutron