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