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Fluorine Name of element: fluorine

Symbol of element: F Boiling point: -188.11*C [|Melting point: -219.67*C] Specific density: 1140kg Number of protons: 9 [|Electrons: 9] Neutrons: 10 Atomic mass: 18.998 Atomic Number: 9 Electron configuration:

Orbital notation: 2s^2 2p^5 Number of valance electrons: 7 How was it discovered: He used electrolysis of a solution of potassium hydrogen difluoride in liquid hydrogen fluoride. [|Who discovered it: Henri Moissan] When was it discovered: 1886 Where and how is it produced: fluorine occurs mostly in the minerals fluorspar and cryolite but it is found in a variety of other minerals. It can also be obtained by electrolyzing a solution of potassium hydrogen fluoride in anhydrous hydrogen fluoride in a metal container. Where it is produced: fluorine is most often found in mines in China, Mexico, and Western Europe. There are over 120 tons of fluorine mineral reserves. Physical properties: density- 1700kg [|Color: pale yellow] Molar volume- 11.20 cm^3 Pungent odor Chemical properties- fluorine is the most reactive of all the elements Reacts violently with water to produce oxygen and the extremely corrosive hydrofluoric acid Minerals or compounds in which found: fluorspar and cryolite Two common chemical reactions: Reacts with the moisture in the air to form O2 Fluorine reacts with dilute aqueous hydroxide solutions to form oxygen (11) fluoride Industrial or commercial uses: fluorine is used to produce isotopic ally fraction end uranium. Commercial fluorochemicals including well known high temperature plastics. Hydrofluoric acid is extensively use for etching glass of light bulbs. Fluorochloro hydrocarbons are used in air conditioning and refrigeration. In small amounts fluorides in water prevent tooth decay. Cost or value: pure- $190 per 100 g Bohr Model of Fluorine:

Picture of Fluorine in its Pure State:



Unusual facts: Henri Moissan who first isolated fluorine, also produced artificial diamonds. Fluorine in small quantities mixed with water is used in tooth paste to prevent tooth decay. The compound hydrofluoric acid can dissolve glass. Credits: Chemicool - [|http://www]. [|chemicool.com/] elements/fluorine.html Author: chemicool Last updated: October 16, 2012 Royal Society of Elements - [] Author: Royal Society of Elements Last Updated: 2013 Annenberg Learner @http://www.learner.org/interactives/periodic/periodic_table.html Author: Annenberg Foundation Last Updated: 2013

Web Elements [] fluorine.html Author: Mark Winter Last Updated: 2012

Bing Images [|www.benjamin-mills.com] Author: Benjamin Mill Last Updated: 2013