Pentseptseptium (Pss)

Pentseptseptium is the systematic name of the theoretical 577. element in the periodic table with a symbol of Pss and atomic number of 577. Pentseptseptium, also known as element 577, has viisi­sataa­seitsemän­kymmentä­seitsemän protons in its nucleus, and viisi­sataa­seitsemän­kymmentä­seitsemän electrons in its shells.