Ennseptoctium (Eso)
Ennseptoctium is the systematic name of the theoretical ۹۷۸. element in the periodic table with a symbol of Eso and atomic number of 978. Ennseptoctium, also known as element 978, has نهصد و هفتاد و هشت protons in its nucleus, and نهصد و هفتاد و هشت electrons in its shells.