Periodic Table Timeline

Sir Francis Bacon made desscription of scientific method.

Jan 1, 1605

Sir Francis Bacon published "The Proficience and Advancement of Learning" which contained a description of what would later be known as the scientific method.

Joseph Black isolated carbon dioxide

Jan 17, 1754

Joseph Black isolated carbon dioxide, which he called "fixed air"

Henry Cavendish discovered hydrogen

Feb 17, 1766

Henry Cavendish discovered hydrogen as a colorless, odourless gas that burns and can form an explosive mixture with air

Antoine Lavoisier wrote the first extensive list of elements

Feb 17, 1778

Antoine Lavoisier wrote the first extensive list of elements containing 33 elements & distinguished between metals and non-metals

Jakob Berzelius developed a table of atomic weights

Feb 17, 1828

Jakob Berzelius developed a table of atomic weights & introduced letters to symbolize elements

John Newlands arranged the known elements in order of atomic weights

Feb 17, 1864

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

William Ramsay discovered the Noble Gases.

Feb 17, 1894

William Ramsay discovered the Noble Gases.

Henry Moseley determined the atomic number of each of the elements

Feb 17, 1913

Henry Moseley determined the atomic number of each of the elements and modified the 'Periodic Law'.