Penthexseptium (Phs)

Penthexseptium is the systematic name of the theoretical 567º element in the periodic table with a symbol of Phs and atomic number of 567. Penthexseptium, also known as element 567, has cinque­cento­sessanta­sette protons in its nucleus, and cinque­cento­sessanta­sette electrons in its shells.