Answer to Question #334700 in Inorganic Chemistry for Doocky

Question

This might be a silly question, but hopefully I will be responded.

As far as I know, ions can't exist on their own, and have to bond with another ion, but it seems that they don't have to when it comes to action potential. It's always about a single ion (e.g. sodium ion entering and leaving cell on its own, not bonding to any other ion). How is this possible if an ion can't exist on its own? Am I wrong about this, or this is some kind of exception, or maybe something else?

Answer 1

The ion is solvateted by water for example in this case