History of the Periodic Table

By nicole_hunt14

  • Robert Boyle discovered phosphrus

    Robert Boyle discovered phosphrus

  • 47 elements were discovered and scientists began to see patterns in the characteristics

  • John Newlands divided 56 elements into 11 groups, based on characteristics

    John Newlands divided 56 elements into 11 groups, based on characteristics

  • Dimitri Mendeleer started the development of the periodic table, arranging chemical elements by atomic mass

    Dimitri Mendeleer started the development of the periodic table, arranging chemical elements by atomic mass

  • Sir William Ramsay and Lord Rayleigh discovered noble gases , which were added to the periodic table as group 0.

    Sir William Ramsay and Lord Rayleigh discovered noble gases , which were added to the periodic table as group 0.

  • J.J. Thompson discovered electrons

    J.J. Thompson discovered electrons

  • Rutherford and Hans Geiger discovered that electrons orbit the nucleus of an atom

    Rutherford and Hans Geiger discovered that electrons orbit the nucleus of an atom

  • Rutherford identified protons in the atomic nucleus

    Rutherford identified protons in the atomic nucleus

  • James Chadwick first discovered neutrons, and isotopes were identified

    James Chadwick first discovered neutrons, and isotopes were identified

  • Glenn Seaburg identified lanthanides and actinides

    Glenn Seaburg identified lanthanides and actinides