Octoctennium (Ooe)
Octoctennium is the systematic name of the theoretical 889. element in the periodic table with a symbol of Ooe and atomic number of 889. Octoctennium, also known as element 889, has kaheksasada kaheksakümmend üheksa protons in its nucleus, and kaheksasada kaheksakümmend üheksa electrons in its shells.