Halogens+by+Jake+and+Ben

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FAMILY NAME: Halogens

LOCATION: Second last family on the periodic table of elements

WHAT TYPE: Non metal

REACTIVITY: Highly Reactive

The Halogens consist of Fluorine, Chlorine, bromine, Iodine, and Astatine.

Some Interesting facts:
 * Halogens means salt formers.
 * All of the Halogens are Poisonous.
 * They will dissolve in sea water.
 * And they range in abundance from fluorine, the 13th most abundant element, to astatine, one of the rarest.

Lewis Dot Structure:



** Fluorine: (Jacob Peirce) **
Atomic Number: 17

Atomic Mass: 18.998

Melting point:-219.6 oC

Boiling Point:-188.1 oC

Valence electrons: 7

Element symbol/ Lewis Dot Diagram

Location/Abundance on Earth:
 * Its mostly found in the Earth's crust and the solar system[[image:file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot-1.png]][[image:file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot-2.png]]

How the name was created:
 * The name was based on the Latin word "fluere" meaning to flow. meaning to flux

The discovery:

 * Fluorine was discovered by a man named George Gore in 1886.

3 uses of Fluorine: -production of fluorochemicals, including many high-temperature plastics such as Teflon. - The usage of melting glass, like to etch the glass in light bulbs
 * It is used in uranium processing
 * It is also used in toothpaste and in water to prevent dental problems
 * Also used in hydrofluoric acid

Interesting facts:
 * It was added to ores while processing the fusing of other metals (pure)
 * Highly toxic and corrosive
 * It has a pale yellow color
 * It is the most reactive and the most electronegative of all the elements
 * very flammable and has a prudent odor.
 * It reacts violently with water

Atomic Number: 17
Atomic Mass: 35.453

Melting Point: -101*C

Boiling Point: -34*C

Valence Electrons: 7

Element Symbol/ Lewis Dot Diagram:


Location/Abundance on Earth:
 * Is located mostly in the crust and atmosphere.
 * If you take one pound of crust it is .0145% Chlorine.

How the Name was made:
 * Chlorine was named after the word Chloros, meaning greenish yellow

Discovery:
 * ** Chlorine was discovered in 1774 by Scheele

3 Uses:
 * 1) Chlorine is used to produce safe drinking water
 * 2) It is used for sanitary means.
 * 3) And it is used to make Chlorates

Interesting facts:
 * In liquid form Chlorine can burn the skin.
 * In gas form It is irritating to the eyes.
 * If Chlorine is concentrated to 1000ppm just a few breaths will kill you.
 * Chlorine containing molecules are involved in the destruction of the ozone layer.
 * It has been in use since 3000 b.c.
 * And it will combine with nearly any element.

__The Sources__ Bentor, Yinon. "Periodic Table: Halogens." //Chemical Elements//. Yinon Bentor, 2009. Web. 12 Apr. 2010. .

"Flourine element facts, Chlorine element facts." //Chemicool//. N.p., n.d. Web. 12 Apr. 2010. [].

Gagnon, Steve. "The Element Flourine." //Jefferson Lab//. N.p., n.d. Web. 12 Apr. 2010. .

Glencoe. "The Periodic Table." Afterword. //Physical Science//. By Glencoe. New York, New York: Mcgraw-Hill, 2002. Back of Book. Print.

Nave, R. "The Halogens." //Hyperphysics//. ???, n.d. Web. 12 Apr. 2010. .

University of California. "Chlorine." //Perodic table of the Elements//. Department of Energy, 15 Dec. 2003. Web. 12 Apr. 2010. .

"Uses of Flourine." //Buzzle//. N.p., 2010. Web. 12 Apr. 2010. .

"What are the Charateristics of the Halogen family." //Wiki Ansewrs//. N.p., n.d. Web. 12 Apr. 2010. .

Wikimedia Foudation. "Halogen." //Wikipedia//. Wikimedia Foudation Inc, 11 Apr. 2010. Web. 12 Apr. 2010. .