Ennseptunium (Esu)
Ennseptunium is the systematic name of the theoretical 971-ші element in the periodic table with a symbol of Esu and atomic number of 971. Ennseptunium, also known as element 971, has тоғыз жүз жетпіс бір protons in its nucleus, and тоғыз жүз жетпіс бір electrons in its shells.