Pentoctoctium (Poo)
Pentoctoctium is the systematic name of the theoretical ۵۸۸. element in the periodic table with a symbol of Poo and atomic number of 588. Pentoctoctium, also known as element 588, has پانصد و هشتاد و هشت protons in its nucleus, and پانصد و هشتاد و هشت electrons in its shells.