Year 9 chemistry assessment task

  • Sir Francis Bacon

    published "The Proficience and Advancement of Learning" which contained a description of what would later be known as the scientific method.
  • Johann Wolfgang Döbereiner

     Johann Wolfgang Döbereiner
    He began to formulate on of the earliest attempts to classify the elements.
  • Johann Wolfgang Döbereiner

    Johann Wolfgang Döbereiner
    he found that some elements formed groups of three with related properties.J
  • Alexandre-Emile Béguyer de Chancourtois

    Alexandre-Emile Béguyer de Chancourtois
    His paper was published,but used geological rather than chemical terms.
  • Lothar Meyer

    develops an early version of the periodic table, with 28 elements organized by valence
  • Dmitri Mendeleev

    Dmitri Mendeleev
    A russian scientist that created the first ever periodic table acording to atomic mass.
  • willam ramsey

    discovered the Noble Gases
  • Henry Moseley

    Henry Moseley
    found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight.