Septtrihexium (Sth)
Septtrihexium is the systematic name of the theoretical thứ 736 element in the periodic table with a symbol of Sth and atomic number of 736. Septtrihexium, also known as element 736, has bảy trăm ba mươi sáu protons in its nucleus, and bảy trăm ba mươi sáu electrons in its shells.