Halogens

By Hannah, Noah, Pierce, and Cooper

The Halogen elements


F- Fluorine

Ci- Chlorine

Br- Bromine

I- Iodine

Fluorine

Symbol: F

Melting Point: -363.3°F (-219.6°C)

Atomic Number: 9

Discovered: 1886, Henri Moissan and it was found in France.

Fluorine is an very reactive and poisonous chemical element. When in room temperature, it turns into a pale yellow gas made of diatomic molecules. It is the lightest of the halogens.

Environmental Safety-

Fluorine is a dangerous and poisonous gaseous halogen

Everyday uses- Tooth Paste



https://maps.google.com/maps?q=paris+france&safe=active&ie=UTF-8&ei=nC3YUvK5HbWxsATW4YHoDQ&sqi=2&pjf=1&ved=0CAgQ_AUoAg

Bromine

Bromine melts at 7°C and boils at 69°C. It has 35 electrons and a atomic mass of 79.904. It’s density is 3.12 g/cm3. Its Symbol is Br and it was discovered in 1826 by Antoine Jerome Balard in Montpellier ,France. Environmental Safety:It may be hazardous. Fun fact:Bromine is used in flame retardants and some vegetable oil





Link:http://goo.gl/maps/lwfSO

Iodine

Iodine symbol is I and its atomic number is 53 and it atomic mass is 126.9. It melting point is 113.7°C. Iodine was discovered by Bernard Courtois in 1811 in France.


Foods that are high in Iodine are Dried Seafood, Baked Potatos, Shrip, Baked Turkey Breast, Boiled eggs.


Environmental hazardous- Iodine may be radioactive. That will naturally form a chemical reaction.


links-https://maps.google.com/maps?q=france&ie=UTF-8&hq=&hnear=0xd54a02933785731:0x6bfd3f96c747d9f7,France&gl=us&ei=FynYUvmYCey_sQTNjYG4Aw&ved=0CJsBELYD

Chlorine

Symbol: Cl Melting Point - 101 °C Atomic number- 17

Chlorine is a greenish yellow gas, combines with nearly all elements.

Used in cleaning products and put in pools


It was discovered in Sweden founded by Carl Wilhelm Scheele 1774



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Citation

Miller, Nacy. "Interactives, the Periodic Table." Annenberg Learner. Thirteen/WNET New York, n.d. Web. 28 Jan 2014. <http://www.learner.org/interactives/periodic/periodic_table.html>.


Dayah, Michael. "Dynamic Periodic Table." Ptable. Ptable.com, 31 Jul 2013. Web. 28 Jan 2014. <http://www.ptable.com/>.


B, m. "What are some uses of halogens." Yahoo Answers. Yahoo Answers, n.d. Web. 28 Jan 2014. <http://answers.yahoo.com/question/index?qid=20071017041714AA6G399>.


Israel, Brett. "Brominated Battle." Environmental Health News. Environmental Health Sciences. Web. 28 Jan 2014. <http://www.environmentalhealthnews.org/ehs/news/2011/brominated-battle-in-sodas>.


. N.p.. Web. 28 Jan 2014. <http://t1.gstatic.com/images?q=tbn:ANd9GcT0Y9ERs9i2GrDyp5PBjRiHcfEi8D40RmJjUAvzGs5-AbsotRNV5o1EeZE:gcserevision101.files.wordpress.com/2009/02/group-7-halogens.jpg>.


Bogdal, Christian, Martin Scheringer, Konrad Hungerbühler, Peter Schmid, and Martin Kohler. "Brominated flame retardants and other endocrine disrupting chemicals in the ecosystem of Lake Thun - environmental fate and correlation to biological effects." Safety and Environmental Technology Group. N.p.. Web. 28 Jan 2014. <http://www.sust-chem.ethz.ch/research/groups/prod_assessment/Projects/bogdal