Septtriennium (Ste)

Septtriennium is the systematic name of the theoretical ٧٣٩. element in the periodic table with a symbol of Ste and atomic number of 739. Septtriennium, also known as element 739, has سبعة مائة وتسعة وثلاثون protons in its nucleus, and سبعة مائة وتسعة وثلاثون electrons in its shells.