francium
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Stockphotos.ro (c) 2026. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
francium |
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| navigate by keyword : francium element periodic table radioactive alkali metal rare symbol sign system chemical elements atomic number eka caesium ekacaesium actinium virginium decay product reactive unstable short lived natural formula compound chemistry substance tabular display inorganic grid raster chart education research science blue vector |
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| Francium, element on the periodic table. Radioactive alkali metal with atomic number 87 and element symbol Fr from Latin francium for France. Unstable and rare, only used for research purposes. Vector |
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Stockphotos.ro (c) 2026. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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