| Argon: Data tables and historic information. |
| Britannica Nobel Prize: Argon: Overview and basic data. |
| ChemGlobe: Argon: Electronic, thermal, and steric data along with basic information. |
| ChemicalElements.com: Argon: Basic information, atomic structure, and table of isotopes. |
| EnvironmentalChemistry.com: Argon: Atomic structure, chemical and physical properties, and table of nuclides. |
| Especiál Gas Inc.: Argon: Numeric data, uses, and general information. |
| It's Elemental: Argon: Basic physical and historical information. |
| LANL: Argon: Sources, properties, isotopes, and uses. |
| Lenntech: Argon: Physical data, chemical properties, health and environmental effects. |
| Visual Elements: Argon: General and physical information, uses, key isotopes, and ionisation energies. |
| WebElements: Argon: Extensive information on history, uses, occurrence, and properties of the element. |
| Wikipedia: Argon: Details the properties of the element, including its history, applications, and characteristics. |
Classical
