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 nyolc­száz­hetven­nyolc protons in its nucleus, and nyolc­száz­hetven­nyolc electrons in its shells.