Septpentnilium (Spn)
Septpentnilium is the systematic name of the theoretical ٧٥٠. element in the periodic table with a symbol of Spn and atomic number of 750. Septpentnilium, also known as element 750, has سبعة مائة وخمسون protons in its nucleus, and سبعة مائة وخمسون electrons in its shells.