Septtriunium (Stu)

Septtriunium is the systematic name of the theoretical 731. element in the periodic table with a symbol of Stu and atomic number of 731. Septtriunium, also known as element 731, has שבע מאות שלושים ואחת protons in its nucleus, and שבע מאות שלושים ואחת electrons in its shells.