As electrons flow through the external circuit, schematically indicated by reference numeral 26, {HEAD ~ alkali metal} 16 passes through electrolyte tube 14 in the form of {TAIL ~ cations} 
As electrons flow through the external circuit , schematically indicated by reference numeral 26 , { HEAD ~ alkali metal } 16 passes through electrolyte tube 14 in the form of { TAIL ~ cations }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL