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- metal, toxic essential trace element; fluorine, F, fluoride ion, F− (3 - 4 mg) - a...
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Fluorine, F, fluoride ion, F− (3 - 4 mg) - a beneficial poisonous element, essential...
- metal, toxic essential trace element; fluorine, F, fluoride ion, F− (3 - 4 mg) - a...
Fluorine, F, fluoride ion, F− (3 - 4 mg) - a beneficial poisonous element, essential...
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