Pentennseptium (Pes)

Pentennseptium is the systematic name of the theoretical 597ú element in the periodic table with a symbol of Pes and atomic number of 597. Pentennseptium, also known as element 597, has cúig chéad nócha a seacht protons in its nucleus, and cúig chéad nócha a seacht electrons in its shells.