francium chemical element
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francium chemical element |
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| navigate by keyword : atom atomic background chemical chemistry design education electron element eps8 flat francium fundamental graphic icon illustration laboratory mass mendeleev modern periodic physics poster proton quantum school science scientific simple style symbol system table technology tile vector weight |
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| Francium, chemical element. Francium is a highly radioactive metal. Colored icon with atomic number and atomic weight. Chemical element of periodic table. |
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