---
title: "Ionic Compound — AP Chem Definition & Exam Guide"
description: "An ionic compound is a lattice of cations and anions held together by Coulombic attraction. Learn how AP Chem tests its properties, solubility, and net ionic equations."
canonical: "https://fiveable.me/ap-chem/key-terms/ionic-compound"
type: "key-term"
subject: "AP Chemistry"
---

# Ionic Compound — AP Chem Definition & Exam Guide

## Definition

An ionic compound is formed when one or more ions come together due to opposite charges attracting each other, typically involving metal cations and non-metal anions.

## Related Study Guides

- [4.2 Net Ionic Equations](/ap-chem/unit-4/net-ionic-equations/study-guide/VTCEO9cDrSHfPodoWGxS)
- [3.1 Intermolecular and Interparticle Forces](/ap-chem/unit-3/intermolecular-forces/study-guide/aq9pSoNJoW70eCdben01)

## Review

### Related Terms

- Ion: An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- [Cation](/ap-chem/key-terms/cation): A positively charged ion, typically a metal, that has lost one or more electrons.
- [Anion](/ap-chem/key-terms/anion): A negatively charged ion, usually a non-metal, that has gained one or more electrons.