The Atom and The Periodic Table

  • Lise Meither
    1939 BCE

    Lise Meither

    She created the Nuclear Fission
  • James Chadwick
    1932 BCE

    James Chadwick

    He discovered the Neutron in 1932.
  • Heisenberg
    1925 BCE

    Heisenberg

    He said it was impossible to locate the location of a Atomic molecule.
  • H.G. Moseley
    1914 BCE

    H.G. Moseley

    He developed the application of X-ray spectra to study the Atomic structure. His discoveries resulted in a more accurate positioning of elements in the Periodic Table by closer determination of atomic numbers.
  • Niels Bohr
    1913 BCE

    Niels Bohr

    He developed and published his model of Atomic structure, which was very small.
  • Marie Curie
    1911 BCE

    Marie Curie

    Marie Curie was a French Physicist and Chemist who conducted research on Radioactivity. She discovered the radioactive elements Radium and Polonium.
  • Hans Geiger
    1911 BCE

    Hans Geiger

    Hans was a German physicist. He is best known for the Geiger-Marsden experiment which discovered the Atom Nucleus. He also invented a reliable device capable of measuring Alpha Radiation.
  • Ernest Rutherford
    1911 BCE

    Ernest Rutherford

    Ernest discovered the Alpha Particles, positively charged particles emitted from radioactive elements. He devised the Gold Foil experiment to investigate the structure of positive and negative charges in the Atom.
  • R.A. Millikan
    1909 BCE

    R.A. Millikan

    He was an American experimental physicist who came up with the measurement of elementary electronic change and worked on Photoelectric effect.
  • J.J Thomson
    1897 BCE

    J.J Thomson

    J.J Thomson was an English physicist. He discovered the Electron and constructed a model of the Atom.
  • Dmitri Mendeleev
    1869 BCE

    Dmitri Mendeleev

    Dmitri was a Russian chemist and inventor. He formulated the Periodic Law and created a farsighted version of the Periodic Table of Elements
  • John Dalton
    1803 BCE

    John Dalton

    John Dalton was a English chemist,physicist, and meteorologist. He is best known for his work in the development of modern atomic theory and his research into color blindness.
  • Issac Newton
    1800 BCE

    Issac Newton

    Isaac Newton was an English mathematician, astronomer, and physicist who is widely recognized as one of the most influential scientist of all time and a key figure in the scientific revolution.
  • Democritus
    460 BCE

    Democritus

    Democritus was a influential Ancient Greek pre-soratic philophser. He was primarily remembered for his formulation of an atomic theory of the universe.