Electric Potential: Neg. Charge, Positive, Mid Point?

[factfinder]

is the electric potential arround an isolated negetive charge considered negetive or positive? Also, at the mid point between a negetive and a positive charge of same charge, is the electric potential zero or not?

 

[Antiphon]

Yes (negative) and yes.

Potential a.k.a. Voltage is defined between two places. In the case of a single charge the convention is that second point is off at infinity someplace.