http://resource.geosciml.org/classifier/cgi/commodity-code/fluorine
definition | Fluorine is an extremely reactive and poisonous chemical element with atomic number 9. The lightest halogen and most electronegative element, it exists as a pale yellow diatomic gas at standard conditions. Almost all other elements, including some noble gases, form compounds with fluorine. | ![]() |
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source | http://en.wikipedia.org/wiki/Fluorine | ![]() |
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in scheme | commodity code | |||||
is primary topic of | fluorine |