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 päť­sto sedemdesiat­sedem protons in its nucleus, and päť­sto sedemdesiat­sedem electrons in its shells.