Research Advances: Scientists Discover Historic Sample of Bomb-Grade Plutonium; Mercury Levels in Arctic Seals May Be Linked to Global Warming; Oh Rats! New Wireless Sensor for Instant Brain [O2]; New Material with Record High Surface Area

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• The Periodic Table: Key to Past "Elemental" Discoveries—A New Role in the Future?Journal of Chemical Education

  • The Periodic Table: Key to Past "Elemental" Discoveries—A New Role in the Future?

    Darleane C. Hoffman
    Journal of Chemical Education 2009 86 (10), p 1122

    Abstract:

    The latest information on the chemical periodic table and the confirmation and naming process for new elements are discussed. The name roentgenium (Rg) for element 111 was officially accepted in 2004. Discovery of element 112 was confirmed in May 2009, ...

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• Revisiting History: Encountering Iodine Then and Now. A General Chemistry Laboratory To Observe Iodine from SeaweedJournal of Chemical Education

  • Revisiting History: Encountering Iodine Then and Now. A General Chemistry Laboratory To Observe Iodine from Seaweed

    M. Farooq Wahab
    Journal of Chemical Education 2009 86 (2), p 206

    Abstract:

    The history of the discovery of iodine is retold using brown-colored seaweed found commonly along the ocean shore. The seaweed is ashed at a low temperature and the iodides are extracted into boiling water. The iodides are oxidized in acidic medium. ...

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• Hold the Heat: Global Heat Retention, Global Warming and CalorimetryJournal of Chemical Education

  • Hold the Heat: Global Heat Retention, Global Warming and Calorimetry

    Harold S. Johnston , Joel D. Burley
    Journal of Chemical Education 2008 85 (2), p 224A

    Abstract:

    In this Activity, students perform quantitative calorimetric measurements on samples of ice/water heated by incandescent light bulbs and with convection with room-temperature surroundings.

    Abstract | PDF w/ Links | Hi-Res PDF