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 แ แแแแกยญแกแแแแชแแยญแแ แแแแแขแ protons in its nucleus, and แ แแแแกยญแกแแแแชแแยญแแ แแแแแขแ electrons in its shells.