Octseptoctium (Oso)

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