Pentpentseptium (Pps)

Pentpentseptium is the systematic name of the theoretical 557. element in the periodic table with a symbol of Pps and atomic number of 557. Pentpentseptium, also known as element 557, has penki šimtai penkiasdešimt septyni protons in its nucleus, and penki šimtai penkiasdešimt septyni electrons in its shells.