Octnilseptium (Ons)
Octnilseptium is the systematic name of the theoretical ที่ 807 element in the periodic table with a symbol of Ons and atomic number of 807. Octnilseptium, also known as element 807, has แปดร้อยเจ็ด protons in its nucleus, and แปดร้อยเจ็ด electrons in its shells.