Revision as of 17:26, 5 December 2016 by Duddy(Talk | contribs)(Created page with "Tennessine is a superheavy artificial chemical element with an atomic number of 117 and a symbol of Ts. It is the second-heaviest known element and penultimate element of the 7th...")
Tennessine is a superheavy artificial chemical element with an atomic number of 117 and a symbol of Ts. It is the second-heaviest known element and penultimate element of the 7th period of the periodic table.
