Ununseptium: the essentialsBrief description: element 117 (ununseptium, Uus) at the time of writing has not been discovered.
IsolationIsolation: as this element is unknown it has never never been isolated. WebElements ShopWebElements now has an online shop at which you can buy periodic table posters, mugs, T-shirts, games, molecular models, and more. |
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