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