Pentunseptium (Pus)

Pentunseptium is the systematic name of the theoretical 517. element in the periodic table with a symbol of Pus and atomic number of 517. Pentunseptium, also known as element 517, has חמש מאות ושבע עשרה protons in its nucleus, and חמש מאות ושבע עשרה electrons in its shells.