Pentunseptium (Pus)

Pentunseptium is the systematic name of the theoretical 517वाँ element in the periodic table with a symbol of Pus and atomic number of 517. Pentunseptium, also known as element 517, has पाँच सौ सत्रह protons in its nucleus, and पाँच सौ सत्रह electrons in its shells.