Similarly, either an addition of positive charge or a removal of negative charge will result in an excess positive charge.
The surface of the soil particle will have a negative charge.
We have the minus because we're adding a negative charge from the electron.
The remaining negative charge can be spread out, or delocalize over three atoms.
So while an electron has a negative charge, its antimatter counterpart, a positron, has a positive charge and they annihilate each other when they get too close.
The acidic pH interacts with the hair's slightly negative charge to help the cuticle, the outer layer of the hair, maintain a smooth, flat surface.
Two negative charges repel each other, and so do two positive charges.
