Fluorine is a nonmetallic chemical element with chemical symbol F and atomic number 9. Fluorine, one of halogen elements, belongs to group ⅶ A of the periodic table and is located in the second period of the periodic table. The elemental fluorine is F2, which is a pale yellow and highly toxic gas. Fluorine gas is highly corrosive and chemically active, and it is one of the most oxidizing substances.

nature

Fluorine is the most active and oxidizing substance in chemistry. Except helium, neon and argon, fluorine can combine with all other elements: it reacts with water to produce water and hydrofluoric acid; Fluorine can strongly combine with bromine, iodine, sulfur, phosphorus, carbon, silicon and other substances at low temperature; Fluorine ion is small in volume and easy to form stable coordination compounds with many positive ions; Fluorine and hydrocarbons will react rapidly and uncontrollably.

Elemental fluorine is mainly used as fluorinating agent to prepare various useful fluorides. Fluoride usually has good properties. Elemental fluorine is strongly irritating to human body.