Wikipedia: Francium Wikipedia: Francium: Properties of the element, including its history and charateristics. (Francium) http://www.wikipedia.org/wiki/Francium
Visual Elements: Francium Visual Elements: Francium: Image, general and physical information, and key isotopes. (Francium) http://www.chemsoc.org/viselements/pages/francium.html
ChemGlobe: Francium ChemGlobe: Francium: Electronic, thermal, and steric data along with an isotope table. (Francium) http://www.vcs.ethz.ch/chemglobe/ptoe/_/87.html
Lenntech: Francium Lenntech: Francium: Physical data and chemical properties. (Francium) http://www.lenntech.com/Periodic-chart-elements/Fr-en.htm
WebElements: Francium WebElements: Francium: Extensive information on history and properties. (Francium) http://www.webelements.com/webelements/elements/text/Fr/key.html
EnvironmentalChemistry.com: Francium EnvironmentalChemistry.com: Francium: Atomic structure, chemical and physical properties, and table of nuclides. (Francium) http://environmentalchemistry.com/yogi/periodic/Fr.html
LANL: Francium LANL: Francium: Basic information and history. (Francium) http://pearl1.lanl.gov/periodic/elements/87.html
Francium Spectroscopy Francium Spectroscopy: Research group at the State University of New York at Stony Brook. History, facts, trapping information, and production. (Francium) http://fr.physics.sunysb.edu/francium_news/frconten.htm