Septpentennium (Spe)

Septpentennium is the systematic name of the theoretical ۷۵۹. element in the periodic table with a symbol of Spe and atomic number of 759. Septpentennium, also known as element 759, has هفتصد و پنجاه و نه protons in its nucleus, and هفتصد و پنجاه و نه electrons in its shells.