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History of the Periodic Table

By cirini11092000

  • Hennig Brand Discovers Phosphorus (15)

    Hennig Brand Discovers Phosphorus (15)

  • Henry Cavendish Discovers Hydrogen (1)

    Henry Cavendish Discovers Hydrogen (1)

  • Daniel Rutherford Discovers Nitrogen (7)

    Daniel Rutherford Discovers Nitrogen (7)

  • Carl Wilhelm Scheele & Joseph Priestly isolate Oxygen (8)

    Carl Wilhelm Scheele & Joseph Priestly isolate Oxygen (8)

  • Sir Humphry Davy Discovers Sodium (11)

    Sir Humphry Davy Discovers Sodium (11)

  • About 47 Elements have been discovered

    About 47 Elements have been discovered

  • Dmitri Mendeleev creates the first 'Periodic Table'

    Dmitri Mendeleev creates the first 'Periodic Table'

  • Henri Moissan isolates Fluorine (9)

    Henri Moissan isolates Fluorine (9)

  • Sir William Ramsay & Lord Rayleigh discover the noble gasses

    Sir William Ramsay & Lord Rayleigh discover the noble gasses

  • J.J Thomson discovers the electron

    J.J Thomson discovers the electron

  • Sir William Ramsay discovers Neon (10)

    Sir William Ramsay discovers Neon (10)

  • Ernest Rutherford identifies protons as positively charged

    Ernest Rutherford identifies protons as positively charged

  • Henry Moseley gave the elements their atomic numbers

    Henry Moseley gave the elements their atomic numbers

  • James Chadwick discovers Neutrons and Isotopes

    James Chadwick discovers Neutrons and Isotopes

  • Joint Institute for Nuclear Research creates Ununpentium (115)

    Joint Institute for Nuclear Research creates Ununpentium (115)

  • Flerov Laboratory of Nuclear Reactions create Ununseptium (117)

    Flerov Laboratory of Nuclear Reactions create Ununseptium (117)

  • 4 New Elements Added to the Periodic Table (113, 115, 117 & 118)

    4 New Elements Added to the Periodic Table (113, 115, 117 & 118)