WebAnswer (1 of 2): At room temperature, fluorine is a gas of diatomic molecules, pale yellow when pure (sometimes described as yellow-green). ... Fluorine condenses into a bright … Webhalogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts). They were given the name halogen, from the Greek roots hal- (“salt”) and -gen (“to produce”), because they all produce sodium salts of similar …

Fluorine F2 - PubChem

Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative reactive element, it is extremely reactive, as it reacts with all other elements except for the light inert … Meer weergeven Electron configuration Fluorine atoms have nine electrons, one fewer than neon, and electron configuration 1s 2s 2p : two electrons in a filled inner shell and seven in an outer shell requiring one more to … Meer weergeven Early discoveries In 1529, Georgius Agricola described fluorite as an additive used to lower the melting point of metals during smelting. He penned the Latin word fluorēs (fluor, flow) for fluorite rocks. The name later evolved into … Meer weergeven Fluorite mining, which supplies most global fluorine, peaked in 1989 when 5.6 million metric tons of ore were extracted. Chlorofluorocarbon restrictions lowered this to 3.6 … Meer weergeven Universe Among the lighter elements, fluorine's abundance value of 400 ppb (parts per billion) – 24th among elements in the universe – is … Meer weergeven Fluorine has a rich chemistry, encompassing organic and inorganic domains. It combines with metals, nonmetals, metalloids, and most noble gases, and … Meer weergeven Elemental fluorine and virtually all fluorine compounds are produced from hydrogen fluoride or its aqueous solutions, hydrofluoric acid. Hydrogen fluoride is produced in kilns by the endothermic reaction of fluorite (CaF2) with sulfuric acid: CaF2 + … Meer weergeven Dental care Population studies from the mid-20th century onwards show topical fluoride reduces dental caries. This was first attributed to … Meer weergeven Web22 nov. 2024 · A fluoride ion is an atom with 9 protons in its nucleus, making it a fluorine atom. It is an “ion” because the number of electrons is not equal to the number of protons, which is also the reason for the “ide” suffix. More specifically, each fluoride ion has 10 electrons, giving it a net electrical charge (also known as a valence) of -1. free website scraper for media links

Fluorine, Chemical Element - reaction, water, uses, …

WebFluorine gas is corrosive to all exposed tissues including upper and lower respiratory tracts., eyes, nose, and any other exposed mucous membranes. Fluorine penetrates … WebSurprisingly, for such a heavy metal, uranium can form a compound that is a gas at moderate temperatures. Uranium combines with six atoms of fluorine to form uranium hexafluoride (UF6). At room temperature and … Web14 feb. 2016 · You go first. It reacts with virtually every element except Ar, He, and Ne. It is lethal at very low levels. Fire fighting The only practical way to extinguish a fluorine fire … free website scraper