The Atomic Model Timeline

  • 500 BCE

    The Alchemists

    The Alchemists
    Dalton's most important contribution to science was his theory that matter is composed of atoms of differing weights and combine in simple ratios by weight. he also wanted to be the creator.
  • 442 BCE

    Democritus

    Democritus
    A greek philosopher who held that everything is composed of "atoms," which are physically, but not geometrically, indivisible; that between atoms, there lies empty space; that atoms are indestructible
  • 428 BCE

    Plato

    Plato
    HE was known for coming up with the elements
  • 384 BCE

    Aristotle

    Aristotle
    He provided us with knowledge of natural science including phyicsis. which dives a good amount of information on astronomy.
  • Robert Boyle

    Robert Boyle
    The person who discovered that the volume of a gas decreases with increasing pressure and vice versa the famous Boyle's law. A leading scientist and intellectual of his day.
  • Lavoisier

    Lavoisier
    Lavoisier was able to decompose the red calx into mercury and oxygen, but he could find no way to break down oxygen into two or more new substances.
  • John Dalton

    John Dalton
    John Dalton is best known for his pioneering theory of atomism. He also developed methods to calculate atomic weights and structures and formulated of partial pressures.
  • Dmitri Mendeleev

    Dmitri Mendeleev
    Created the periodic table
  • The Curies

    The Curies
    He said the radio active martials causes atoms to break down spontaineisley
  • JJ Thomason

    JJ Thomason
    HE was the first to discover the electron
  • Albert Einstein

    Albert Einstein
    HE was known for as the creator of the special ang general theories of relativity and for his intelligent hypotheses concerning light
  • Robert Millikan

    Robert Millikan
    Robert Millikan. His oil drop experiment helped to quantify the charge of an electron, which contributed greatly to our understanding of the structure of the atom and atomic theory
  • Ernest Rutherford

    Ernest Rutherford
    Got a noble laureate for his pioneering work in nuclear physics theory of structure to the atom
  • Neils Bohr

    Neils Bohr
    He made numerous constructions to our understanding of atomic structure and quantum
  • Henry G.J Moseley

    Henry G.J Moseley
    Discovering that the number of protons in an element and its atomic number