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Fluorine (F): Fun Facts and Information About the Element

What is the symbol? F
What is the atomic number? 9
What is the atomic weight? 18.9984
What is the melting point in Celsius? -220
What is the boiling point in Celsius? -188
What is the density (g/cm3) 1.7
What percent of the earths crust? 0.029
What year was it discovered? 1886
Who discovered the element? Ferdinand Frederic and Henri Moissan
What group is the element in? 17
What is the electron configuration? [He] 2s2 2p5
What is the ionization energy? 17.4228
What element category is it in? Halogens

Where is Fluorine Found?

Until World War II, there was no commercial production of elemental fluorine. The nuclear bomb project and nuclear energy applications, however, made it necessary to produce large quantities.

What is Fluorine Used For?

Fluorine and its compounds are used in producing uranium and more than 100 commercial fluorochemicals, including many high-temperature plastics. Hydrofluoric acid etches glass of light bulbs. Fluorochlorohydrocarbons are extensively used in air conditioning and refrigeration.

The presence of fluorine as a soluble fluoride in drinking water to the extent of 2 ppm may cause mottled enamel in teeth when used by children acquiring permanent teeth; in smaller amounts, however, fluoride helps prevent dental cavities.

Elemental fluorine has been studied as a rocket propellant as it has an exceptionally high specific impulse value.