Francium

= Fran cium = By: Ramsey


 * Atomic Number: ** 87


 * Protons: ** 87


 * Electrons: 87 **


 * Neutrons: ** 136


 * Average Atomic Mass: ** 223.0


 * Isotopes: ** Fr-212,Fr-221,Fr-222 and Fr-223


 * Discovery: Fancium was first discovered in 1939 by Marguerite Perey. The existence of francium was predicted by Mendeleev in the 1870's. **
 * Name: ** Francium was named after france were Marguerite Perey lived.


 * Uses: ** There are no uses for francium because its half life is 21 minutes.


 * Interesting Facts ** : The half life of francium is 21 minutes. The name francium comes from its country of origin france.

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 * links:[] [| http://chemistry.about.com/od/elementfacts/a/francium.htm]
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