Pentseptseptium (Pss)

Pentseptseptium is the systematic name of the theoretical 577ú element in the periodic table with a symbol of Pss and atomic number of 577. Pentseptseptium, also known as element 577, has cúig chéad seachtó a seacht protons in its nucleus, and cúig chéad seachtó a seacht electrons in its shells.