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