Pentseptoctium (Pso)

Pentseptoctium is the systematic name of the theoretical 578. element in the periodic table with a symbol of Pso and atomic number of 578. Pentseptoctium, also known as element 578, has пятьсот семьдесят восемь protons in its nucleus, and пятьсот семьдесят восемь electrons in its shells.