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sara peavy : atomic timeline

By peavyy1
  • The Alchemists
    500 BCE

    The Alchemists

    The Alchemists used Aristotle's idea about matter and created experiments and activities with them.
  • Plato
    421 BCE

    Plato

    He developed a metaphysics of forms,
  • Democritus
    400 BCE

    Democritus

    He theorized that all material bodies are made up of small atoms.
  • Robert Boyle

    Robert Boyle

    Robert Boyle created Boyle's Law, which stated that at a constant temperature, the pressure P of a gas varies inversely with it's volume V.
  • Antoine Lavoisier

    Antoine Lavoisier

    The modern day atomic model was helped developed by Lavoisier.
  • John Dalton

    John Dalton

    Created Dalton's Atomic Theory which stated that all matter was composed of atoms.
  • Mendeleev

    Mendeleev

    He invented the periodic table of elements.
  • Curie

    Curie

    She discovered the elements radium and polonium.
  • JJ Tompson

    JJ Tompson

    Said all atoms contain tiny negatively charged subatomic particles or electrons.
  • Albert Einstein

    Albert Einstein

    Einstein mathematically proved existence of atoms.
  • Robert Millikan

    Robert Millikan

    Millikan precisely determined the magnitude of an electron's charge.
  • Ernest Rutherford

    Ernest Rutherford

    Rutherford discovered that all atoms have a small charged nucleus surrounded by empty space.
  • Neils Bohr

    Neils Bohr

    Neils Bohr proposed the theory for the hydrogen atom.
  • Mosley

    Mosley

    Mosley discovered the relation between wave length and atomic number.
  • schrodinger

    schrodinger

    created a mathematical model for the distribution of electrons in an atom.
  • Chadwich

    Chadwich

    He proved the existence of electrons.