Septtriennium (Ste)
Septtriennium is the systematic name of the theoretical ที่ 739 element in the periodic table with a symbol of Ste and atomic number of 739. Septtriennium, also known as element 739, has เจ็ดร้อยสามสิบเก้า protons in its nucleus, and เจ็ดร้อยสามสิบเก้า electrons in its shells.