Differences in Repelling Charges

[Neil Graham]

Simply, is there a difference between a positive charge repelling a positive charge and a negative charge repelling a negative charge. More of what I am asking, is there any special properties that one has over the other, and vice versa.

 

[Drakkith]

If by 'charge' you mean any charged object, no. The sign of the charge doesn't matter. If you mean 'elementary particles' then the only difference, other than being oppositely charged, is that electrons are about 1000 times less massive than protons.