Pentpentseptium (Pps)

Pentpentseptium is the systematic name of the theoretical 557वाँ element in the periodic table with a symbol of Pps and atomic number of 557. Pentpentseptium, also known as element 557, has पाँच सौ सत्तावन protons in its nucleus, and पाँच सौ सत्तावन electrons in its shells.