{HEAD ~ Elements} that can be added to silver to produce useful silver alloys include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, {TAIL ~ scandium}, and cobalt 
{ HEAD ~ Elements } that can be added to silver to produce useful silver alloys include zinc , aluminum , copper , manganese , germanium , yttrium , bismuth , { TAIL ~ scandium } , and cobalt
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH