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LANL: Francium - http://periodic.lanl.gov/elements/87.html
Basic information and history. |
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ChemicalElements.com: Francium - http://www.chemicalelements.com/elements/fr.html
Basic information, atomic structure, and isotopes table. |
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Wikipedia: Francium - http://en.wikipedia.org/wiki/Francium
Properties of the element, including its history and characteristics. |
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It's Elemental: Francium - http://education.jlab.org/itselemental/ele087.html
Basic physical and historical information. |
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EnvironmentalChemistry.com: Francium - http://environmentalchemistry.com/yogi/periodic/Fr.html
Atomic structure, chemical and physical properties, and table of nuclides. |