Septpentnilium (Spn)

Septpentnilium is the systematic name of the theoretical 750. element in the periodic table with a symbol of Spn and atomic number of 750. Septpentnilium, also known as element 750, has septyni šimtai penkiasdešimt protons in its nucleus, and septyni šimtai penkiasdešimt electrons in its shells.