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  2. Fluorine - Wikipedia

    en.wikipedia.org/wiki/Fluorine

    Fluorine substitution, usually of a single atom or at most a trifluoromethyl group, is a robust modification with effects analogous to fluorinated pharmaceuticals: increased biological stay time, membrane crossing, and altering of molecular recognition. [210]

  3. Fluorine compounds - Wikipedia

    en.wikipedia.org/wiki/Fluorine_compounds

    While an individual fluorine atom has one unpaired electron, molecular fluorine (F 2) has all the electrons paired.This makes it diamagnetic (slightly repelled by magnets) with the magnetic susceptibility of −1.2×10 −4 (), which is close to theoretical predictions. [5]

  4. Fluoride - Wikipedia

    en.wikipedia.org/wiki/Fluoride

    Fluorine, in the form of fluoride, is considered to be a micronutrient for human health, necessary to prevent dental cavities, and to promote healthy bone growth. [28] The tea plant (Camellia sinensis L.) is a known accumulator of fluorine compounds, released upon forming infusions such as the common beverage. The fluorine compounds decompose ...

  5. CPK coloring - Wikipedia

    en.wikipedia.org/wiki/CPK_coloring

    Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.

  6. Fluorocarbon - Wikipedia

    en.wikipedia.org/wiki/Fluorocarbon

    Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry. [4] Its strength is a result of the electronegativity of fluorine imparting partial ionic character through partial charges on the carbon and fluorine atoms, which shorten and strengthen the bond (compared to carbon-hydrogen bonds) through favorable covalent ...

  7. Hydrogen fluoride - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_fluoride

    Hydrogen fluoride (fluorane) is an inorganic compound with chemical formula H F.It is a very poisonous, colorless gas or liquid that dissolves in water to yield hydrofluoric acid.

  8. Isotopes of fluorine - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_fluorine

    Fluorine (9 F) has 19 known isotopes ranging from 13 F to 31 F and two isomers (18m F and 26m F). Only fluorine-19 is stable and naturally occurring in more than trace quantities; therefore, fluorine is a monoisotopic and mononuclidic element. The longest-lived radioisotope is 18 F; it has a half-life of 109.734(8) min. All other fluorine ...

  9. Difluorodisulfanedifluoride - Wikipedia

    en.wikipedia.org/wiki/Difluorodisulfanedifluoride

    1,1,1,2-tetrafluorodisulfane, also known as 1,2-difluorodisulfane 1,1-difluoride or just difluorodisulfanedifluoride (FSSF 3) is an unstable molecular compound of fluorine and sulfur. The molecule has a pair of sulfur atoms, with one fluorine atom on one sulfur, and three fluorine atoms on the other.