Is fluorine a gas
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Fluorine, a poisonous, colorless gas, belongs to group 17 of the periodic table (halogens). It has the symbol F and the ordinal number 9.
Fluorine is a pure element, i.e. there is only one stable isotope:.
Fluorine (lat .: River, flux) was already described in 1530 by Georgius Agricola in the form of fluorspar,,. Fluorine could not be detected until the middle of the 19th century, although it was already known. All attempts to extract fluorine failed due to its aggressive and caustic properties. Henri Moissan only succeeded in creating the elementary representation in 1886 through the electrolytic decomposition of potassium fluoride in liquid hydrogen fluoride at low temperatures of -55.
Fluorine is the most reactive of all elements. Even as a solid, fluorine reacts explosively with hydrogen at -200 to form hydrogen fluoride. Fluorine reacts spontaneously with almost all other elements. Exceptions are helium, neon, argon and nitrogen. Even the noble gases xenon, krypton and radon can react with fluorine. In contrast to all other halogens, fluorine reacts without light activation.
With hydrogen-containing compounds (,, CnH2n + 2) always arises.
Fluorine reacts with metals to form the corresponding metal fluorides. In some cases it is possible that the metal surface becomes passivated and the reaction comes to a standstill.
The high reactivity of fluorine gas is partly due to the low binding energy in the molecule, which is only 38. This means that the molecules can be easily split thermally. The formation of new bonds to other atoms is then strongly exothermic, which can often cause the reaction to get out of control.
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