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What do the particles of a colloid do?

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The particles of a colloid selectively absorb ions and acquire an electric charge. All of the particles of a given colloid take on the same charge (either positive or negative) and thus are repelled by one another.

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Similar questions: what happens when the particles of a colloid take on the same charge and are repelled by one another? What happens when a colloid absorbs ions and require an electric charge? [ Hide these questions ]

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