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  2. Fluoride - Wikipedia

    en.wikipedia.org/wiki/Fluoride

    Fluoride (/ ˈ f l ʊər aɪ d, ˈ f l ɔːr-/) [3] is an inorganic, monatomic anion of fluorine, with the chemical formula F − (also written [F] −), whose salts are typically white or colorless. Fluoride salts typically have distinctive bitter tastes, and are odorless.

  3. Fluorine compounds - Wikipedia

    en.wikipedia.org/wiki/Fluorine_compounds

    Pnictogens (nitrogen's periodic table column) show very similar trends in reactivity and acidity of the highest fluorides (pentafluorides) and most common ones (trifluorides), with the said property increasing down the group: NF 3 is stable against hydrolysis, [84] PF 3 hydrolyzes very slowly in moist air, [85] while AsF 3 completely hydrolyzes ...

  4. Fluorine - Wikipedia

    en.wikipedia.org/wiki/Fluorine

    Soluble fluorides are moderately toxic: 5–10 g sodium fluoride, or 32–64 mg fluoride ions per kilogram of body mass, represents a lethal dose for adults. [273] One-fifth of the lethal dose can cause adverse health effects, [ 274 ] and chronic excess consumption may lead to skeletal fluorosis , which affects millions in Asia and Africa, and ...

  5. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity. For more detailed information about the origins of element names, see List of chemical element name etymologies.

  6. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Periodic table of the chemical elements showing the most or more commonly named sets of elements (in periodic tables), and a traditional dividing line between metals and nonmetals. The f-block actually fits between groups 2 and 3 ; it is usually shown at the foot of the table to save horizontal space.

  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.

  9. Bismuth - Wikipedia

    en.wikipedia.org/wiki/Bismuth

    Bismuth is a chemical element with the symbol Bi and atomic number 83. ... fluoride at 500 °C (932 °F) ... Bismuth at The Periodic Table of Videos ...