[vixter101]

In other words, can an anion exist without somehow being balanced by a cation, and vice versa? A solution of ions would (could?) be a balanced system, but can an ion exist on its own, without being balanced by another, oppositely charged ion? Thanks!

[ARGOS++]

Dear vixter101;

Not under "normal" conditions, because it’s in near or in "far" balanced in a certain kind.

The only cases that enter my mind in the moment are inside Plasma and inside the MS system, or in ionised air, or on a surface by bombardment with ions/electrons.
Maybe there are a few more, but all quite "diluted".

Good Luck!
                    ARGOS⁺⁺

[typhoon2028]

A molten salt would have ions existing not in solution.

[ARGOS++]

Dear typhoon2028;

You’re absolutely right, - but quite well balanced!
But vixter101 asked for more or less unbalanced situations.

Good Luck!
                    ARGOS⁺⁺

[typhoon2028]

Ah yes, I missed that part.