Ennseptoctium (Eso)

Ennseptoctium is the systematic name of the theoretical 978e element in the periodic table with a symbol of Eso and atomic number of 978. Ennseptoctium, also known as element 978, has negen­honderd­acht­en­zeventig protons in its nucleus, and negen­honderd­acht­en­zeventig electrons in its shells.