Septtriunium (Stu)

Septtriunium is the systematic name of the theoretical ที่ 731 element in the periodic table with a symbol of Stu and atomic number of 731. Septtriunium, also known as element 731, has เจ็ด​ร้อย​สาม​สิบ​เอ็ด protons in its nucleus, and เจ็ด​ร้อย​สาม​สิบ​เอ็ด electrons in its shells.