Atomic Theory Timeline

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  • antoine lavoisier

    French chemist who, through a conscious revolution, became the father of modern chemistry
  • John Dalton

    English meteorologist who switched to chemistry when he saw the applications for chemistry of his ideas about the atmosphere. He proposed the Atomic Theory in 1803 which stated that all matter was composed of small indivisible particles termed atoms, atoms of a given element possess unique characteristics and weight, and ( three types of atoms exist: simple, compound and complex.
  • Law of conservation of mass

    The Law of Conservation of Mass is one of a group of laws on the physical properties of matter, mass and energy
  • Dalton's Atomic mass theory

    Each chemical element is composed of extremely small particles that are indivisible and cannot be seen by the naked eye, called atoms. Atoms can neither be created nor destroyed.
  • Dmitri Mendeleev

    was a Russian chemist. He is credited as being the primary creator of the first version of the periodic table of elements.
  • J.J Thomson

    Thomson's early interest in atomic structure was reflected in his Treatise on the Motion of Vortex Rings which won him the Adams Prize in 1884.
  • Robert Millikan

    As a scientist, Millikan made numerous momentous discoveries, chiefly in the fields of electricity, optics, and molecular physics. His earliest major success was the accurate determination of the charge carried by an electron
  • Ernest Rutherford

  • Niels Bohr

  • Erwin Schrodinger

  • Henry Moseley

  • James chadwick

  • Plum Pudding Atomic Model

  • Cathode ray tube

  • Gold Foil experiment

  • Rutherford Model

  • Electron cloud model

  • Quantum Mechanical model

  • Bohr Planetary Model