Octseptoctium (Oso)

Octseptoctium is the systematic name of the theoretical 878. element in the periodic table with a symbol of Oso and atomic number of 878. Octseptoctium, also known as element 878, has acht­hundert­acht­und­siebzig protons in its nucleus, and acht­hundert­acht­und­siebzig electrons in its shells.