Unoctennium (Uoe)

Unoctennium is the systematic name of the theoretical 189. element in the periodic table with a symbol of Uoe and atomic number of 189. Unoctennium, also known as element 189, has մեկ­հարյուր ութսուն­ինը protons in its nucleus, and մեկ­հարյուր ութսուն­ինը electrons in its shells.