What particles move in an orderly manner when current passes through liquids?

Electric currents are called directed motion of charged particles.
In liquids, such charged particles are ions. Molecules of certain substances (alkalis, salts, acids) under the action of a solvent (water) are divided into two parts. One particle has a positive charge (cation), the second particle has a negative charge (anion). A large number of positively and negatively charged particles are formed in the liquid. Under the action of an electric field, positively charged particles move to the negative electrode (in one direction), negatively charged particles move to the positive electrode (in the other direction), a directional movement of electrically charged particles is formed, and an electric current flows.