Francium - Wikipedia, the free encyclopedia
Properties of the element, including its history and characteristics. ... Francium (pronounced /ˈfrænsiəm/, FRAN-see-əm), formerly known as eka-caesium ...
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francium: Definition from Answers.com
francium n. ( Symbol Fr ) An extremely unstable radioactive element of the alkali metals, produced artificially from actinium or thorium, having
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Francium
Basic information and history. ... Francium, the heaviest known member of the alkali metals series, occurs as a ... Thirty-three isotopes of francium are recognized. ...
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It's Elemental - The Element Francium
The Element Francium - Basic Physical and Historical Information ... Francium was discovered by Marguerite Catherine Perey, a French chemist, in 1939 ...
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WebElements Periodic Table of the Elements | Francium ...
This WebElements periodic table page contains Essential information for the element francium ... Francium is found in uranium minerals, and can be made artificially by ...
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Francium
Francium (pronounced /ˈfrænsiəm/), formerly known as eka-caesium and actinium K, ... Francium is a highly radioactive metal that decays into astatine, radium, ...
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The Open Door Web Site : Visual Chemistry : Francium
Who identified francium? Francium was identified by Marguerite Perey, working at the Curie ... Francium was identified from the radio active decay of actinium. ...
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Francium Summary and Analysis Summary
Francium summary with 14 pages of encyclopedia entries, essays, summaries, research information, and more. ... Creating, cooling, trapping francium atoms. ...
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Francium - New World Encyclopedia
Francium (chemical symbol Fr, atomic number 87) is a radioactive metal found in ... Francium is formed and occurs as a result of the radioactive decay (alpha ...
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francium — FactMonster.com
More than 30 other isotopes of francium are known; some are prepared by ... Francium is one of the alkali metals found in Group 1 of the periodic table. ...
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