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 päť­sto šesťdesiat­deväť protons in its nucleus, and päť­sto šesťdesiat­deväť electrons in its shells.