PPT-The halogens

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. 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 Chemistry. What are Halogens?. Halogens are a series of non-metal elements located in group 7 of the periodic table. The term “halogen” means. “salt. -former”.. . All halogens . have seven electrons in their outermost. 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. Learning Outcomes. History of the idea of elements,. The contributions of the Greeks, Boyle, Davy and Moseley.. Greek Periodic Table. Robert Boyle. Element cannot be split up into simpler substances by chemical means. 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. 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. Objective:. To know what phenol is. Success criteria:. Recognise phenol compounds. Recall . the reaction of phenol with bromine water. Compare the reactions of phenols to that of bromine. Explain the difference in reactivity between phenols and benzene. This week’s objective. : . Interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements. . What is the Periodic Table?. The Periodic Table is the arrangement of all the elements known to man into one table. This table arranges the elements based on their properties. . La gamme de thé MORPHEE vise toute générations recherchant le sommeil paisible tant désiré et non procuré par tout types de médicaments. Essentiellement composé de feuille de morphine, ce thé vous assurera d’un rétablissement digne d’un voyage sur . Alkaline Metals. The first column of the periodic table is the group of elements known as the Group 1 or . alkali metals. . . This group includes lithium, sodium, potassium, rubidium, cesium, and francium. By definition, a metal is an element that loses one or more electrons to create a positively charged ion known as a . 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)..