• Francium - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Francium Characteristics. Francium is the most unstable of the naturally occurring elements: its most stable isotope, francium-223, has a half-life of only 22 minutes.
  • Francium»the essentials [WebElements Periodic Table]

    www.webelements.com/francium This WebElements periodic table page contains the essentials for the element francium
  • Francium - Chemicool

    www.chemicool.com/elements/francium.html Francium's properties, interesting facts, discovery, videos, images, states, energies, appearance and characteristics.
    • Francium - Element information, properties and uses ...

      www.rsc.org/periodic-table/element/87/francium Element Francium (Fr), Group 1, Atomic Number 87, s-block, Mass [223]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
    • It's Elemental - The Element Francium

      education.jlab.org/itselemental/ele087.html What's in a name? Named for the country of France. Say what? Francium is pronounced as FRAN-see-em. History and Uses: Francium was discovered by Marguerite Catherine ...
    • What is Francium? - LiveScience.com

      www.livescience.com/39582-what-is-francium.html Properties of francium. Francium is both the heaviest of the known alkali metals and the most unstable of the first 101 elements in the Periodic Table.