3. EE lement Symbol; F EE lement Name; Fluorine AA tomic number; 9 AA tomic Mass; 18.9984032 SS olid, liquid, or Gas?; Gas MM etal, Metalloid, or Nonmetal?; Nonmetal

4. Facts FFamily Group Name; Halogen/ Group 17 DDiscovered by; Karl Scheele DDiscovered in; 1771 CCan be used in Toothpaste, to etch Glass, and to focus Lenses

5. Interesting Facts  When mixed with water, it reacts EXPLOSIVELY.  It must be handled with EXTREME care in a Laboratory.  Has a Strong Characteristic smell.

6. Physical Properties  Pale; Yellow  Liquid to Solid  Lightest element in Group Halogen/17  occurs naturally in the earth's crust where it can be found in rocks, coal and clay

7. Chemical Properties GGas to Liquid SStrong odor RReacts at room Temperature ffluorine occurs as a diatomic molecule, F2 FFluorides are released into the air in wind-blown soil.

8. How its used  Fluorine can also protect us from dental decay, if it is applied through toothpaste twice a day. If fluorine is absorbed too frequently, it can cause teeth decay.  Fluorine gas is released in the industries. This gas is very dangerous, as it can cause death at very high concentrations. At low concentrations it causes eye and nose irritations

9. The End