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