- EnvironmentalChemistry.com: Argon
 - Features an overview, name in other languages, atomic structure, chemical properties, physical properties, and regulatory information. - Web Elements: Argon
- Information on the element including abundance, history, isotopes, uses, and much more.
- Wikipedia: Argon
- Hyperlinked overview of the element featuring notable characteristics, applications, history, occurrence, compounds, isotopes, and references.
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