Sites:
| ChemGlobe: Europium: Electronic, thermal, and steric data along with isotopes table. | | ChemicalElements.com: Europium: Basic information, atomic structure, and isotopes. | | EnvironmentalChemistry.com: Europium: Atomic structure, chemical and physical properties, and table of nuclides. | | Europium: Data tables and historic information. | | It's Elemental: Europium: Basic physical and historical information. | | LANL: Europium: History, production, properties, sources, and uses. | | Lenntech: Europium: Physical data, chemical properties, health and environmental effects. | | Visual Elements: Europium: Image, source, physical information, and key isotopes. | | WebElements: Europium: Extensive information on history, uses, occurrence, compounds, and properties. | | Wikipedia: Europium: Properties of the element, including its history, applications, and characteristics. |
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