Pentseptoctium (Pso)

Pentseptoctium is the systematic name of the theoretical 578. element in the periodic table with a symbol of Pso and atomic number of 578. Pentseptoctium, also known as element 578, has fimm­hundrað­og­sjeyti­átta protons in its nucleus, and fimm­hundrað­og­sjeyti­átta electrons in its shells.