Explain properties of colloidal systems - electric charge, Biology

Electric Charge - Properties of Colloidal Systems

Colloidal particles are electrically charged. Some colloidal particles carry a positive charge (+), others a negative charge (-). The ionic charge is the same for all the charged particles in a given mass of material. This is why colloidal particles remain in suspension: particles with like charges do not clump together because they are repelled by one another.

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