117 th element of the periodic table
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Its Ununseptium its known as esk-astatine
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Ununseptium is the 117th element of the periodic table.
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Ununseptium is a superheavy artificial chemical element with an atomic number of 117 and a temporary symbol of Uus. Also known as eka-astatine or element 117, it is the second-heaviest known element and penultimate element of the 7th period of the periodic table