Octpenttrium (Opt)
Octpenttrium is the systematic name of the theoretical ที่ 853 element in the periodic table with a symbol of Opt and atomic number of 853. Octpenttrium, also known as element 853, has แปดร้อยห้าสิบสาม protons in its nucleus, and แปดร้อยห้าสิบสาม electrons in its shells.