Ununseptium

Ununseptium (eka-astatine) is the temporary name of an undiscovered chemical element in the periodic table that has the temporary symbol Uus and has the atomic number 117.

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Ununseptium has not yet been discovered. If discovered, it will most likely be a synthetically prepared element.

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Ununseptium is a temporary IUPAC systematic element name.

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Eka-astatine: redirectununseptium...

Chemical element: A chemical element, often called simply element, is the class of atoms which contain the same number of protons....

Periodic table: The periodic table of the chemical elements, also called the Mendeleev periodic table, is a tabular display of the known chemical elements. First created by Dmitri Mendeleev, the elements are arranged by electron configuration so that many chemical properties follow a regular pattern across the tabl...