See also:
Sites:
- ChemGlobe: Actinium
- Electronic, thermal, and steric data along with an isotope table.
- ChemicalElements.com: Actinium
- Basic information, atomic structure, and isotopes.
- EnvironmentalChemistry.com: Actinium
- Atomic structure, properties, and table of nuclides.
- It's Elemental: Actinium
- Basic physical and historical information.
- LANL: Actinum
- Basic information and history.
- Lenntech: Actinium
- Physical data, chemical properties, health and environmental effects.
- Visual Elements: Actinium
- Image, sources, biological role, key isotopes, and oxidation states.
- WebElements: Actinium
- Extensive information on history, uses, occurrence, compounds, and properties.
- Wikipedia: Actinium
- Details the properties of the element, including its history, applications, and characteristics.
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Last update: 7:58 PT, Wednesday, January 13, 2010
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