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