See also:

• Science: Chemistry: Elements: Lanthanides  (2)

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

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