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