Septpentennium (Spe)

Septpentennium is the systematic name of the theoretical ٧٥٩. element in the periodic table with a symbol of Spe and atomic number of 759. Septpentennium, also known as element 759, has سبعة مائة وتسعة وخمسون protons in its nucleus, and سبعة مائة وتسعة وخمسون electrons in its shells.