Periodic Table

By mel-cowie

  • New chemical element discovery

    Hennig Brand a bankrupt german tried to discover the philosopher's stone, but failed and instead discovered the chemical element phosphorous.

  • Element discovery

    At least 47 elements were discovered

  • Classifying the elements

    Johann Wolfgang Döbereiner started to trying to formulate the periodic table and classify the elements.

  • Formulation of chemical elements

    Johann Wolfgang Döbereiner, discovered that some of the chemical elements with similar chemical properties could be put into groups of three.

  • More Copies of the Periodic table

    The English chemist William Odling also drew up a table that was similar to the table published by Mendeleev.

  • Classifying elements into groups

    John Newlands classified 56 known elements into eleven groups based on their physical properties.

  • Periodic Table first Published

    There is a lot of history put into the periodic table, it was first published by Dimitri Mendelev, other scientists did have there input but the he was more well known as being the sole creater.

  • Discovery

    French physicist Antoine Bequerel first discovered radioactivity.

  • Rutherford discovery

    Rutherford discuessed that radioactivity is caused by the breakdown of atoms.

  • James Chadwick

    James Chadwick first discovered neutrons, and isotopes were also identified

  • Lanthanides and actinides

    Glenn Seaborg identified lanthanides and actinides.