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ChemGlobe: Francium
Electronic, thermal, and steric data along with an isotope table.
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/87.html
ChemicalElements.com: Francium
Basic information, atomic structure, and isotopes table.
http://www.chemicalelements.com/elements/fr.html
EnvironmentalChemistry.com: Francium
Atomic structure, chemical and physical properties, and table of nuclides.
http://environmentalchemistry.com/yogi/periodic/Fr.html
It's Elemental: Francium
Basic physical and historical information.
http://education.jlab.org/itselemental/ele087.html
LANL: Francium
Basic information and history.
http://periodic.lanl.gov/elements/87.html
Lenntech: Francium
Physical data and chemical properties.
http://www.lenntech.com/Periodic-chart-elements/Fr-en.htm
Visual Elements: Francium
Image, general and physical information, and key isotopes.
http://www.chemsoc.org/viselements/pages/francium.html
Wikipedia: Francium
Properties of the element, including its history and characteristics.
http://en.wikipedia.org/wiki/Francium
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