Septpenthexium (Sph)
Septpenthexium is the systematic name of the theoretical 756. element in the periodic table with a symbol of Sph and atomic number of 756. Septpenthexium, also known as element 756, has επτακόσια πενήντα έξι protons in its nucleus, and επτακόσια πενήντα έξι electrons in its shells.