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 յոթ­հարյուր իննասուն­մեկ protons in its nucleus, and յոթ­հարյուր իննասուն­մեկ electrons in its shells.