Octoctseptium (Oos)
Octoctseptium is the systematic name of the theoretical ที่ 887 element in the periodic table with a symbol of Oos and atomic number of 887. Octoctseptium, also known as element 887, has แปดร้อยแปดสิบเจ็ด protons in its nucleus, and แปดร้อยแปดสิบเจ็ด electrons in its shells.