So all the corridions will collect next to the on the right side. So anytime this positively charged sodium ion hits this negatively charged electrode, a transfer of electrons will occur. So a sodium ion will gain electrons, and that means it's reduced. And by definition, wherever reduction occurs, that's our cathode. So this side of the cell is our cathode, and that means this side of the cell is the amo, because that's where oxidation takes place. The chloride ions are oxidized and lose electrons, and these electrons jump into the electrode and travel on to this way, thus creating a circuit that moves in this direction.