Penthexennium (Phe)

Penthexennium is the systematic name of the theoretical 569. element in the periodic table with a symbol of Phe and atomic number of 569. Penthexennium, also known as element 569, has חמש מאות שישים ותשע protons in its nucleus, and חמש מאות שישים ותשע electrons in its shells.