Propelled electrically from one side to the other.
The electrical phenomena show that there are two ions to the molecule, and that these ions are electrically charged.
The wire may have at the upper end a plate called a " capacity area," electrically equivalent to an extension of the wire, or part of the wire may be bent over and carried horizontally.
The colloidal particles are electrically charged and become discharged by the ions of sodium, magnesium and calcium present in the sea-water.
For instance, to take the two solutions to which we have already referred, we have of ions between molecules at the instants of molecular collision only; during the rest of the life of the ions they were regarded as linked to each other to form electrically neutral molecules.