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- Name : Fluorine
- Symbol : F
- Atomic # : 9
- Atom weight: 18.9984
- Melting P. : -219.62
- Boiling P. : -188
- Oxidation : -1
- Pronounced : FLU-eh-reen or FLU-eh-rin
- From : Latin fluere, "flow"
- Identified : Henri Moissan in 1886
- Appearance : Greenish-yellow, pungent, corrosive gas
- Note : Extremely reactive
-
- [Properties]
-
- Fluorine heads the list of Group-IIA elements that are commonly known as
- the halogens. The remainder of the group is made up of chlorine (Cl),
- bromine (Br), iodine (I), and astatine (At). All halogens, with the notable
- exception of astatine, occur in nature. Notice that the names of the
- halogens all end in -ine.
- The halogens are all very active, nonmetallic elements that readily
- combine with most metals to account for a large family of metallic salts.
- In such instances, the halogens are represented by ions having a charge of
- -1.
- Fluorine can oxidize any metal, reacting with it to form some common
- fluorides. The oxidation state is -1, so most of the metallic fluorides
- are fairly simple. Like the other halides, fluorine is diatomic; that is,
- elements fluorine is made up of two atoms of the gas.
-