English Nihonium Cited by user R8R on 04 Sep 2018 Nihonium is a synthetic chemical element with symbol Nh and atomic number 113. It is extremely radioactive; its most stable known isotope, nihonium-286, has a half-life…
Afrikaans Tennessien Cited by user Burgert Behr on 28 Jan 2017 Tennessien is ’n superswaar, kunsmatige element met die atoomgetal 117 en simbool Ts.
English Ununseptium Cited by user R8R Gtrs on 23 Sep 2015 Ununseptium is a superheavy artificial chemical element with temporary symbol Uus and atomic number 117.