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Scientists uncover fundamental property of astatine — rarest naturally occurring element on Earth

May 17, 2013 – 8:00 am
  • Scientists uncover fundamental property of astatine -- rarest naturally occurring element on Earth - Scientists have carried out ground-breaking experiments to investigate the atomic structure of astatine (atomic number 85), the rarest naturally occurring element on Earth. Through experiments conducted at the radioactive isotope facility ISOLDE at CERN, scientists have accessed, for the first time, the ionization potential of the astatine atom. The successful measurement fills a long-standing gap in Mendeleev's periodic table, since astatine was the last element present in nature for which this fundamental property was unknown.(10.1038/ncomms2819)

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    Slinn Pickings

    Forging a new periodic table using nanostructures

    February 19, 2013 – 11:00 am
  • Forging a new periodic table using nanostructures - Northwestern University's Chad Mirkin has developed a new set of building blocks based on nanoparticles and DNA. Using these tools, scientists will be able to build -- from the bottom up, just as nature does -- new and useful structures. Mirkin has built more than 200 different crystal structures with 17 different particle arrangements. Some of the lattice types can be found in nature, but many are new structures that have no naturally occurring mineral counterpart.
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    chemistry-news

    A periodic table debate

    June 6, 2012 – 10:11 am

    Should chemists refer to the Periodic Table of the elements or the Periodic System?

    via Is it the periodic table or the periodic system? ยป Periodic Table with names.

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