Pentseptoctium (Pso)

Pentseptoctium is the systematic name of the theoretical 578ste element in the periodic table with a symbol of Pso and atomic number of 578. Pentseptoctium, also known as element 578, has vyfhonderd agt-en-sewentig protons in its nucleus, and vyfhonderd agt-en-sewentig electrons in its shells.