Septennunium (Seu)

Septennunium is the systematic name of the theoretical 791. element in the periodic table with a symbol of Seu and atomic number of 791. Septennunium, also known as element 791, has seitsemän­sataa­yhdeksän­kymmentä­yksi protons in its nucleus, and seitsemän­sataa­yhdeksän­kymmentä­yksi electrons in its shells.