fluorine method
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Fluorine — Fluorine, la. fluorum, meaning to flow ), is the chemical element with the symbol F and atomic number 9. Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its elementally isolated (pure)… … Wikipedia
Fluorine absorption dating — is the use of fluorine to determine the duration of time an object found in the soil has been there. It is a relative dating technique, in comparison to absolute dating techniques like radiocarbon dating. Fluorine absorption dating can be carried … Wikipedia
Fluorine perchlorate — is the rarely encountered chemical compound FClO4. One synthesis uses fluorine and perchloric acid, though the action of ClF5 on water is another method. It is extremely unstable and has a penetrating odor. Structure Fluorine perchlorate should… … Wikipedia
fluorine — /floor een, in, flawr , flohr /, n. Chem. the most reactive nonmetallic element, a pale yellow, corrosive, toxic gas that occurs combined, esp. in fluorite, cryolite, phosphate rock, and other minerals. Symbol: F; at. wt.: 18.9984; at. no.: 9.… … Universalium
fluorine dating — a method of determining the relative age of fossil bones found in the same excavation by comparing their fluorine content. [1945 50] * * * … Universalium
fluorine dating — /ˈflʊərin deɪtɪŋ/ (say floouhreen dayting) noun a method of determining the age of objects of plant or animal origin by means of their content of fluorine absorbed from surrounding groundwater …
fluorine dating — a method of determining the relative age of fossil bones found in the same excavation by comparing their fluorine content. [1945 50] … Useful english dictionary
geochronology — geochronologic /jee oh kron l oj ik/, geochronological, adj. geochronologist, n. /jee oh kreuh nol euh jee/, n. the chronology of the earth, as based on both absolute and relative methods of age determination. [1890 95; GEO + CHRONOLOGY] * * *… … Universalium
Manganese(IV) fluoride — IUPAC name manganese tetrafluoride Other names manga … Wikipedia
organohalogen compound — Introduction any of a class of organic compounds (organic compound) that contain at least one halogen (halogen element) ( fluorine [F], chlorine [Cl], bromine [Br], or iodine [I]) bonded to carbon. They are subdivided into alkyl, vinylic, aryl,… … Universalium
