The magnesium may be in {HEAD ~ the form} of magnesium cadmium alloy, the temperature being maintained below the temperature at which {TAIL ~ magnesium} and cadmium vaporize 
The magnesium may be in { HEAD ~ the form } of magnesium cadmium alloy , the temperature being maintained below the temperature at which { TAIL ~ magnesium } and cadmium vaporize
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH