Atom Discovery Timeline

  • 322

    • Aristotle

    •	Aristotle
    Aristotle provided us with knowledge of natural science including Physics, which gives a vast amount of information on astronomy, meteorology, plants, and animals.
  • 442


    Greek philosopher, who developed the atomic theory of the universe,His atomic theory anticipated the modern principles of the conservation of energy and the irreducibility of matter
  • 500

    • AlChemists

    develop the theory—that all metals are composed of mercury and sulfur and that it is possible to change base metals into gold
  • Lavoisier

    French chemist, who is considered the founder of modern chemistry. Lavoisier clarified the concept of an element as a simple substance that could not be broken down by any known method of chemical analysis, and he devised a theory of the formation of chemical compounds from elements.
  • Coulomb

    He explianed that like fluids repelled and unlike attracted,this was important in the development of the theory of absolute measurement, and had a great impact on electrical potential.
  • John Dalton

    John Dalton
    British chemist and physicist, who developed the atomic theory upon which modern physical science is founded.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.
  • crooked

    Sir William Crookes constructed this forerunner of the modern television picture tube in the 1870s to investigate the properties of cathode rays.