Unseptseptium is the systematic name of the theoretical ที่ 177 element in the periodic table with a symbol of Uss and atomic number of 177. Unseptseptium, also known as element 177, has หนึ่งร้อยเจ็ดสิบเจ็ด protons in its nucleus, and หนึ่งร้อยเจ็ดสิบเจ็ด electrons in its shells.