Charge

=go back  = =Chaaaaaaaarge! =

The charge of an ion can either be positive or negative. Positives and negatives always go together. The charge is shown in a chemical reaction like this: Ag+ (aq) + CrO4²- → Ag2CrO4 **Ag is positive because it has a positive plus sign (+). CrO4²- is negative because it has a negative two (²-). ** In the final product the positive and negative ions react and form a compound!