Septpentunium (Spu)

Septpentunium is the systematic name of the theoretical 751-и element in the periodic table with a symbol of Spu and atomic number of 751. Septpentunium, also known as element 751, has седемстотин петдесет и едно protons in its nucleus, and седемстотин петдесет и едно electrons in its shells.