Facts about the Classification of the Element Fluorine
Fluorine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". The halogens exist, at room temperature, in all three states of matter - Gases such as Fluorine & Chlorine, Solids such as Iodine and Astatine and Liquid as in Bromine.

Brief Facts about the Discovery and History of the Element Fluorine
First described in 1529 by Georigius Agricola for its use as a flux. Fluorine was discovered by Joseph Henri Moissan in 1886. Moissan won the 1906 Nobel Prize in chemistry.

Occurrence of the element Fluorine
Obtained from the mineral fluorite

Common Uses of Fluorine
Production of uranium
Air conditioning
Refrigeration
Insecticide
Toothpaste
Added to municipal water supplies
Teflon

The Properties of the Element Fluorine
Name of Element : Fluorine
Symbol of Element : F
Atomic Number of Fluorine : 9
Atomic Mass: 18.998404 amu
Melting Point: -219.62 °C - 53.530006 °K
Boiling Point: -188.14 °C - 85.01 °K
Number of Protons/Electrons in Fluorine : 9
Number of Neutrons in Fluorine : 10
Crystal Structure: Cubic
Density @ 293 K: 1.696 g/cm3
Color of Fluorine : pale-yellow