A zwitterion is an ion, that in a neutral pH, is electrically neutral but holds positive and negative charges on different atoms. Substances of this nature are amphoteric and are often called ampholytes (from "amphoteric electrolytes").
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A '''zwitterion''' is an [[ion]], that in a neutral [[pH]], is electrically neutral but holds positive and negative [[electric charge|charges]] on different [[atom]]s. Substances of this nature are amphoteric and are often called [[ampholyte]]s (from "amphoteric electrolytes").