Octseptoctium (Oso)

Octseptoctium is the systematic name of the theoretical ۸۷۸. element in the periodic table with a symbol of Oso and atomic number of 878. Octseptoctium, also known as element 878, has هشتصد و هفتاد و هشت protons in its nucleus, and هشتصد و هفتاد و هشت electrons in its shells.