Periodic table

periodic timeline

By callum tickner

  • noble gasses

    by 1785 the noble gasses were discovered by a man called william ramsey and were added to mandeevs table

  • know elements

    by the end of 1817 47 elements were known

  • 1860 periodic table

    by the end of 1860 around 60 elements had been discoverd on the periodic table

  • radioactive elements

    rutherford discovers radioactive elements

  • mandeleeve first table

    mandeleeves first table had been compleated

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