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Famous Dead Guys

By rachel.clevidence
  • 100

    Thales of Miletus 620-546 BCE

    Questioned Basic Principles and Origins of Matter
  • 211

    Democritus 440 BCE

    Democritus 440 BCE
    Named Atom from word Atomos
    Developed first Atomic Theory
  • 340

    Aristotle 340 BCE

    Aristotle 340 BCE
    Rejected Atom
    Developed fire water earth air model

  • Sir Isaac Newton

    Sir Isaac Newton

  • John Dalton 1787-1803 AD

    John Dalton 1787-1803 AD
    Proved atomic theory and atomic pressure with Atomic theory experiment

  • Henri Becquerel 1896 AD

    Henri Becquerel 1896 AD
    Discovered Radioactivity Did Uranium Experiment

  • JJ Thomson 1897 AD May - June

    JJ Thomson 1897 AD May - June
    Discovered the Electron and developed the Plum Pudding Model Did Cathode Ray Experiment

  • Milikan 1908-1910

    Milikan 1908-1910
    Found charge of individual electrons. Did Oil Drip Experiment

  • Rutherford 1911 and 1919

    Rutherford 1911 and 1919
    Discovered Protons and Nucleus
    Did Gold Foil Experiment

  • Niels Bohr 1913 AD

    Niels Bohr 1913 AD
    Developed hydrogen model
    Made electron Theory

  • Francis Aston 1919

    Francis Aston 1919
    Did Mass Spectograph Experiment
    Made whole # rule
    Discovered isotopes

  • Erwin Schrodinger 1926 AD

    Erwin Schrodinger 1926 AD
    Used math equations to locate electrons
    Discovered Electron Cloud
    Made Quantum Mechanical Model

  • James Chadwick 1932 AD

    James Chadwick 1932 AD
    Discovered Neutron