Octunseptium (Ous)
Octunseptium is the systematic name of the theoretical 817. element in the periodic table with a symbol of Ous and atomic number of 817. Octunseptium, also known as element 817, has แ แแแแกยญแฉแแแแแแขแ protons in its nucleus, and แ แแแแกยญแฉแแแแแแขแ electrons in its shells.