The History of the Periodic Table

  • Antoine Laurent Lavoisier

    Antoine Laurent Lavoisier
    Antoine Lavoisier wrote the first extensive list of elements containing 33 elements & distinguished between metals and non-metals. Known as the father of modern chameistry
  • Gay-Lussac

    Gay-Lussac
    Gay-Lussac had found in 1808 that when gases
    chemically react, the volumes of both the reactants
    and the products are in simple ratios.
  • John Dalton

    John Dalton
    John Dalton proposed "Dalton's Law" describing the relationship between the components in a mixture of gases. Atoms are featureless spheres. The only difference between different elements is their weight.
  • Amedeo Avogadro

    Amedeo Avogadro
    Amedeo Avogadro was far ahead of his time when he published in 1811 his hypothesis that equal volumes of all gases contain equal numbers of molecules (at the same temperature and pressure).
  • Jöns Jacob Berzelius Stockholm

    Jöns Jacob Berzelius Stockholm
    Jacob Berzelius developed a table of atomic weights & introduced letters to symbolize elements.
  • Johann Döbereiner Jena

    Johann Döbereiner Jena
    Johann Dobereiner developed groups of 3 elements with similar properties.
  • The Chemical Congress of 1860

    The time had come for chemists to resolve several questions and
    to come to agreement on several conventions. The Chemical Congress debated several key issues.
  • John Newlands

    John Newlands arranged the known elements in order of atomic weights & observed similarities between some elements.
  • Dimitri Mendeleév

    Dimitri Mendeleév
    Dmitri Mendeleev produced a table based on atomic weights but arranged 'periodically' with elements with similar properties under each other. His Periodic Table included the 66 known elements organized by atomic weights.
  • Lothar Meyer

    Lothar Meyer
    Lothar Meyer develops an early version of the periodic table, with 28 elements organized by valence.
  • William Ramsay

    William Ramsay
    William Ramsay discovered the noble gases.
  • Marie and Pierre Curie

    Marie and Pierre Curie
    Marie and Pierre Curie isolated radium and polonium from pitchblende.
  • Henry Moseley

    Henry Moseley
    Henry Moseley determina el número atómico de cada uno de los elementos y modifico la ley periódica.
  • Glenn Seaborg

    Glenn Seaborg
    Glenn Seaborg sintetizó los elementos transuránicos (elementos después de uranio en la tabla periódica).