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 fünf­hundert­sieben­und­fünfzig protons in its nucleus, and fünf­hundert­sieben­und­fünfzig electrons in its shells.