Ununseptium - Periodic Table of Videos
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The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Ununseptium is number 117.
According to current rules from IUPAC, when element 117 is given a definitive name, this will have to end with “-ium”, rather than ending with “–ine” like the other halogen elements.
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