francium periodic table the elements with element symbol |
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| navigate by keyword : alkali atom atomic blue caesium chart chemical chemistry compound decay display education eka ekacaesium element elements formula francium grid illustration inorganic mendeleev metal name natural number periodic perspective product radioactive rare raster research science sign substance symbol table tabular vector white |
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| Francium, on periodic table of the elements. Radioactive alkali metal, with symbol Fr, named after France, with atomic number 87. Because of its instability and rarity only used for research purposes. |
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