Octseptoctium (Oso)

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