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    Fluorine Wikipedia

    Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions.As the most electronegative element, it is extremely reactive, as it reacts with almost all other elements, except for helium and neon.. Among the elements, fluorine ranks 24th in universal abundance and 13th in terrestrial ...

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    Pump SEARCH!

    On this site you will learn about pumps and pump systems. You can do calculations and trouble shoot existing pump systems, everything is FREE. How about videos of interesting experiments with fluids. Need a shoulder to cry on, check out the forum

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