Septennoctium (Seo)

Septennoctium is the systematic name of the theoretical 798. element in the periodic table with a symbol of Seo and atomic number of 798. Septennoctium, also known as element 798, has syv­hundrede og otte­og­halvfems protons in its nucleus, and syv­hundrede og otte­og­halvfems electrons in its shells.