Septpentseptium (Sps)
Septpentseptium is the systematic name of the theoretical 757. element in the periodic table with a symbol of Sps and atomic number of 757. Septpentseptium, also known as element 757, has сімсот пʼятдесят сім protons in its nucleus, and сімсот пʼятдесят сім electrons in its shells.