Periodic table

The Making of the Periodic Table

By KATHLEEN THOMAS

  • Antoine Lavoisier (1743-1794)

    Antoine Lavoisier (1743-1794)
    French chemist famous for identifying and naming Hydrogen & Oxygen. Recognized the role of oxygen in combustion and tried to classify elements into metals and nonmetals.

  • Johann Wolfang Döbereiner (1780-1849)

    Johann Wolfang Döbereiner (1780-1849)
    German chemist who identified similar properties in certain elements and grouped them into 'Döbereiner's triads', which led to the Periodic Laws or Trends of Elements

  • Lothar Meyer (1830-1895)

    Lothar Meyer (1830-1895)
    German chemist who reaffirmed Moseley's and Mendeleev's work by publishing an updated periodic table with 50 elements. Meyer's laws of the periodic table were based on Atomic Volume

  • John Newlands (1837-1898)

    John Newlands (1837-1898)
    British chemist who was the first person to devise a rough draft of the periodic table by grouping elements according to their relative atomic masses. Also published 'Law of Octaves'.

  • Dmitri Mendeleev (1834-1907)

    Dmitri Mendeleev (1834-1907)
    Russian chemist who used the Periodic Law (based on Atomic Mass) to create a version of the Periodic Table and to correct accepted properties of elements. He also predicted unknown properties of some elements.

  • Henry Moseley (1887-1915)

    Henry Moseley (1887-1915)
    English physicist who used self-built equipment to show that every element is different due to the no. of protons in the nucleus, helping establish Atomic Number.