The element fluorine is a halogen, and in its normal state fluorine is a yellow-brown gas with a foul odor. Fluorine has an atomic weight of 18.9984032, a melting point of -363.32 °F, and a boiling point of -306.62 °F. Fluorine, as the most reactive of the elements, will react with almost all inorganic and organic matter. Some current uses of fluorine include: as a hydrocarbon for use in refrigerators and air conditioners, as a tooth decay preventative in very small amounts in water and toothpaste, and in the production of high temperature plastics.
