Penthexennium (Phe)

Penthexennium is the systematic name of the theoretical ۵۶۹. element in the periodic table with a symbol of Phe and atomic number of 569. Penthexennium, also known as element 569, has پانصد و شصت و نه protons in its nucleus, and پانصد و شصت و نه electrons in its shells.