Penthexseptium (Phs)
Penthexseptium is the systematic name of the theoretical 567'inci element in the periodic table with a symbol of Phs and atomic number of 567. Penthexseptium, also known as element 567, has beş yüz atmış yeddi protons in its nucleus, and beş yüz atmış yeddi electrons in its shells.