Fluorine may interact with biological systems in the form of fluorine-containing compounds. Though elemental fluorine (F2) is very rare in everyday life...

of other aspects of each organism. The noble gases helium, neon, argon, krypton, xenon are nonreactive and have no known direct biological role — albeit...

hydrogen and fluorine, hydrogen is being oxidized and fluorine is being reduced: H2 + F2 → 2 HF This spontaneous reaction releases 542 kJ per 2 g of hydrogen...

also known as biological psychology, biopsychology, or psychobiology, is the application of the principles of biology to the study of physiological,...

17 of the periodic table. Its properties are thus similar to those of fluorine, chlorine, and iodine, and tend to be intermediate between those of the...

oxide layer nevertheless does not prevent reaction with the halogens; fluorine attacks silicon vigorously at room temperature, chlorine does so at about...

provided the transformation can undergo this type of conformational control in the transition state. Fluorine directed glycosylations represent an encouraging...

trioxide compound tungsten(VI), WO3. It will, however, react directly with fluorine (F2) at room temperature to form tungsten(VI) fluoride (WF6), a colorless...

covalent radius of 71 pm is smaller than those of boron (84 pm) and carbon (76 pm), while it is larger than those of oxygen (66 pm) and fluorine (57 pm). The...

fluorination reactions, reacts vigorously with water. The inventory of complexes is very large. Starting with higher oxidation states, complexes of Co(IV)...

substances (PFAS or PFASs) are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain; there...

ISBN 0-13-841891-8. Court, T. L.; Dove, M. F. A. (1973). "Fluorine compounds of nickel(III)". Journal of the Chemical Society, Dalton Transactions (19): 1995...

monosulfide (CuS). Cuprous halides with fluorine, chlorine, bromine, and iodine are known, as are cupric halides with fluorine, chlorine, and bromine. Attempts...

the Earth's thermostat. Aspects of the carbonate-silicate cycle have changed through Earth history as a result of biological evolution and tectonic changes...

agents such as fluorine gas. The terbium(III) cation is brilliantly fluorescent, in a bright lemon-yellow color that is the result of a strong green emission...

long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc...

have half-lives suitable for biological scientific experiments. These are: 32 P, a beta-emitter (1.71 MeV) with a half-life of 14.3 days, which is used routinely...

iodine as equivalent halogens, but does not measure fluorine levels in the sample. Utilization of halogen containing materials in processes such as water...

because they generate a greenhouse effect thousands of times stronger than that of CO2. Fluorine-based compounds such as sulphur hexafluoride and perfluorocarbons...

the same thing as uptake by a biological system. Diverse ions are used by animals and microorganisms for the process of mineralizing structures, called...

determination of copper in tobacco leaves samples by using a minicolumn of sisal fiber (Agave sisalana) loaded with Alizarin fluorine blue by FAAS"....

humans, the biological roles of zinc are ubiquitous. It interacts with "a wide range of organic ligands", and has roles in the metabolism of RNA and DNA...

General, Organic, and Biological Chemistry, 6th ed., HarperCollinsCollege, ISBN 978-0-673-99054-9 Toon R 2011, "The discovery of fluorine", Education in Chemistry...

reactive one. When comparing carbon-halogen bonds, lighter halogens such as fluorine and chlorine have a better orbital overlap with carbon, which makes the...

[citation needed] Cuprous halides with fluorine, chlorine, bromine, and iodine are known, as are cupric halides with fluorine, chlorine, and bromine. Attempts...

used for production of fluorine-18 in radiopharmaceuticals and radiotracers, and positron emission tomography. Small amounts of 17 O and 18 O are naturally...

measurements in an attempt to offer an earlier diagnosis to the FTD patient. Fluorine-18-fluorodeoxyglucose positron emission tomography scans classically show...

corrosive than other chlorinated solvents. It does not tend to polymerise like fluorine analogue tetrafluoroethylene, C2F4. Tetrachloroethylene may react violently...

a combination of a noble gas (argon, krypton, or xenon) and a reactive gas (fluorine or chlorine). Under the appropriate conditions of electrical stimulation...

1039/B503883A. PMID 15962045. Eskandari K, Lesani M (March 2015). "Does fluorine participate in halogen bonding?". Chemistry. 21 (12): 4739–4746. doi:10...