Halogens – Group 17 Fluorine – Tacarra Chlorine – Hap Bromine – Jade Iodine – Raul Astatine - Jade

Commonalities All are salt makers Oxidation Number is -1 All have 7 valence Electrons All good for cleaning something

Chemical family album Tacarra

Parents Fluorine: Karl Scheele Henri Mossan

Birth place & Date 1771

halogens

Physical Description 1 Protons/Electrons:9

Physical description 2 Density:0.001696gm/cm3 Boiling point: 84.95k Melting point: 53,53k Heat of vapor:3.2698kj/mol Specific Heat: 0.82j/gmk Electron configuration: 1s²2s²2p5

Chemical description Valence#: 7 Ions: -1 Oxidation#:-1 Reactivity: high LiF NaF KF

Negative attributes Poisonous

POSITIVE ATTRIBUTES Toothpaste Drinking water

Address Group 7 row 2

Chlorine By: Hap Sandhu

Discovery Carl Wilhelm Scheele discovered chlorine in 1774 in Sweden. It is a non-metal. Protons: 17 Electrons: 17

Density: 3.214 g/l Boiling Point: -34.6°C Melting Point: 100.98°C Fusion Heat: 6.41 (Cl-Cl) Specific Heat: 0.477 (Cl-Cl)

Chemical Description Valence #: -1 Ion: hypchlorite, chlorite, chlorate, perchlorate Oxidation #: -1 Reactivity: High Three compounds: NaCl, Carnallite, Sylvite

Uses Positive Negative Chlorine is used in drinking water to make it safer for the consumer to drink. Paper products, dyes, food, plastics, paints, and medicines are made with chlorine. Negative It is used in chemical warfare

Bromine Halogen Family, G17 P4,

Bromine was discovered by Antoine J. Balard in the year 1826 in France. It is a nonmetal. It has 35 protons, 35 electrons, and 45 neutrons.

Orthorhombic Crystalline Structure Is a gas at room temperature Boiling point: 58.78ºC Melting Point: -7.2ºC Orthorhombic Crystalline Structure Is a gas at room temperature Orthorhombic Crystalline Structure

Valence # - 7 Ion – Bromide Oxidation # -1 Very reactive Sodium Bromide, Potassium Bromide, Dibromoethane

Positive Attributes: Pesticides, water purification compound, flame retardant Negative Attributes: Irritates the skin and tissues, poisons humans if somehow ingested or if it touches the skin.

This Section Done By: Jade Sellers

Astatine

Was discovered by Dale R. Corson, K. R Was discovered by Dale R. Corson, K.R. McKenzie, and Emilio Serge in the University of California, 1904. It is a Nonmetal. It has 85 Protons, 85 Electrons, and 125 Neutrons.

Boiling Point: 377.0ºC Melting Point: 302.0ºC 7g/cm^3 density Is a solid at room temperature.

Valence # - 7 Ion – unknown Oxidation # -1 Very reactive and radioactive Halides, Oxides, Hydrides

Positive attributes : radioactive tracker for cancer Negative Attributes: highly radioactive

This Section Done By: Jade Sellers

Sources : Fluorine http://hyperphysics.phy-astr.gsu.edu/hbase/pertab/f.html http://www.green-planet-solar-energy.com/images/fluorine-bohr.gif http://www.calzim.com/online/online2_1/class_material/unit1/f_ion_dot1.bmp http://mooni.fccj.org/~ethall/fluor/fluor.htm

Works Cited : Chlorine http://macro.lsu.edu/russo/Courses/1201WebS99/ch89.htm http://www.chemicalelements.com/bohr/b0017.gif http://chemistry.about.com/od/elementfacts/a/chlorine.htm http://www.chemicool.com/elements/chlorine.html

Works Cited : Bromine and Astatine http://www.bt.cdc.gov/agent/bromine/basics/facts.asp http://www.chemicool.com/elements/bromine.html http://www.facts-about.org.uk/science-element-bromine.htm http://www.facts-about.org.uk/science-element-astatine.htm http://www.chemicool.com/elements/astatine.html http://www.webelements.com/astatine/compounds.html