Penthexennium (Phe)

Penthexennium is the systematic name of the theoretical 569-шы element in the periodic table with a symbol of Phe and atomic number of 569. Penthexennium, also known as element 569, has бес жүз алпыс тоғыз protons in its nucleus, and бес жүз алпыс тоғыз electrons in its shells.