Pentseptoctium (Pso)

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