Octseptunium (Osu)
Octseptunium is the systematic name of the theoretical ที่ 871 element in the periodic table with a symbol of Osu and atomic number of 871. Octseptunium, also known as element 871, has แปดร้อยเจ็ดสิบเอ็ด protons in its nucleus, and แปดร้อยเจ็ดสิบเอ็ด electrons in its shells.