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