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