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fluorine

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. more like this
notation
02.03.02 more like this
F more like this
source http://en.wikipedia.org/wiki/Fluorine more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/commodity-code/non-metal original
narrower fluorine original
in scheme commodity-code original
is primary topic of fluorine