On Tue, May 8, 2012 at 11:51 AM, Mike Monett <mrmon...@pstca.com> wrote:
> In metals, current flow is in the form of electrons. They are negatively > charged and move from the negative electrode to the positive electrode. > > In electrolytes, current flow is in theform of ions. Positively charged > ions are usually metals, such as silver, calcium, sodium, potassium, zinc, > copper, and so on. They flow from the positive terminal to the negative, > and are called cations. > > They are balanced by an equal flow of negatively-charged ions that flow > towards the anode. The are called anions. Examples are hydroxide, sulfur, > etc. > > All life processes depend on the control of ions to perform various tasks > and to build structures like bone, trees, etc. > Strictly semantics, the fact is that ions are charged particles. At the basis of this charge is electrons. > > If electrons could flow in water, all life processes would immediately > cease, since electron flow would bypass these processes. > This is nonsense, in the extreme. There is always electron flow in water because different material is always being introduced in the water, either naturally or artificially. These materials will tend to donate or accept electrons to create a neutrally charged environment (as much as possible); so you have electron flow, charge in motion. Olushola
