PPT-Halogens

Chemistry What are Halogens Halogens are a series of nonmetal elements located in group 7 of the periodic table The term halogen means salt former All halogens have seven electrons in their outermost. Larry D. Johnson Methods Branch, MD-44 Air Methods Research Division National Exposure Research Laboratory U.S. Environmental Protection Agency Research Triangle Park, North Carolina 27711 Presented A Group 7. Elements in the Halogen Group. Fluorine (F). Chlorine (. Cl. ). Bromine (Br). Iodine (I). Astatine (At). Group 7 Elements. Similar reactions to with other elements because they all gain one electron. . Later. Group 7. The Halogens. Physical Properties. Simple Molecular Structures. Diatomic molecules. Strong covalent . b. onds. Weak intermolecular forces. Low melting and boiling points. Poor conductors of heat and electricity. Physical Science. Elements and their Properties. At room temperature, most metals are . ____.. gases. liquids. radioactive. solids. The process by which solid iodine particles change directly to gas without first becoming a liquid is called . l When the waste oil hauler company comes to pick up a shipment of waste oil, it may run a test on the oil to check for contaminants. If the test results indicate “halogens” are pr Halogen displacement reactions. http://www.youtube.com/watch?v=Y06IoBUeVbw. Test for halide ions. http://www.youtube.com/watch?v=7F4JhrBWdY4. . Conc. Sulphuric acid and halides. http://www.youtube.com/watch?v=OoS3q1C8zts. of the . Periodic Table. The Periodic Table. Families of the Periodic Table:. At the conclusion of our time together, you should be able to:. Name each region of the Periodic Table. . Name each family of the Periodic Table. Elements in Group 1 are called . alkali metals. . lithium, sodium, potassium, rubidium, cesium, and francium . • Alkali metals are so named because they are metals that react with water to make alkaline solutions. . 7. elements?. All pupils will be able to (Baseline):. . Describe the trends in properties in Group 7. Most pupils will be able to (Further):. . Use the displacement reactions to prove the order of reactivity for the halogens is correct. Unit . 3 . Test Review Game. 1. Periodic describes. Something that occurs at regular intervals. Something that occurs very rarely. Something that occurs frequently. Something that occurs three or four times a year. Quick Starter. What is causing this girl to rub her eyes?. show hint. show answer. Group 7 elements. Quick Starter. People often think that chlorine – which is added to swimming pools to kill bacteria – can irritate people’s eyes. Hydrocarbon ignited in a condition of excess oxygen will combust (oxidize). Forms carbon dioxide, energy and water. Combustion is an exothermic reaction (so the net reaction involves the net output of heat energy).  . . Electronic Configuration of Hydrogen 1s. 1. Position of hydrogen in the periodic table: Position of hydrogen in periodic table is not justified because it resembles both alkali metals as well as halogens.. Dr. . Nouf. H. . Alotaibi. Group 17 elements, fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), belong to halogen family. . Electron configurations ns. 2. np. 5. (n is the period number)..