---
title: "Ion-Dipole Interactions — AP Chem Definition & Exam Guide"
description: "Ion-dipole interactions are attractions between ions and polar molecules, like dissolved salt ions and water. Key to AP Chem Topic 4.4's dissolution debate."
canonical: "https://fiveable.me/ap-chem/key-terms/ion-dipole-interactions"
type: "key-term"
subject: "AP Chemistry"
---

# Ion-Dipole Interactions — AP Chem Definition & Exam Guide

## Definition

Ion-dipole interactions occur when an ion interacts with a polar molecule. The positive end of the polar molecule is attracted to the negative ion and vice versa.

## Related Study Guides

- [4.2 Net Ionic Equations](/ap-chem/unit-4/net-ionic-equations/study-guide/VTCEO9cDrSHfPodoWGxS)
- [4.4 Physical and Chemical Changes](/ap-chem/unit-4/physical-vs-chemical-changes/study-guide/klo7E1MlmIr8w2mRq9jA)

## Review

### Related Terms

- [Polar Molecule](/ap-chem/key-terms/polar-molecule): A polar molecule has a net dipole as a result of opposing charges due to its molecular structure and electronegativity differences.
- [Electronegativity](/ap-chem/key-terms/electronegativity): Electronegativity refers to an atom's ability to attract shared electrons in a chemical bond.
- [Ionic Bonding](/ap-chem/key-terms/ionic-bonding): Ionic bonding is the complete transfer of valence electron(s) between atoms generating two oppositely charged ions.