Preview

Chemistry Life in Daily Life

Powerful Essays
Open Document
Open Document
2966 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Chemistry Life in Daily Life
Assignment # 1
Chemistry

Submitted to: dr. shamshad
Submitted by: sheeraz ahmed
Rg# 10-nust-be-me-83 Date: 11/4/2011
Table of Context

* Introduction * Daily Life Applications * Fluorine * Introduction * Properties And Uses Of Fluorine * Fluoridation Of Water * Chlorofluorocarbons * Chlorine * Introduction * Uses Of Chlorine * Chlorine And Organic Compounds * Bromine * Introduction * Halogen Lamps * Iodine * Introduction * Uses And Applications * Astatine * Introduction * Uses And Applications

Introduction & daily life applications of halogens

INTRODUCTION: * Table salt, bleach, fluoride in toothpaste, chlorine in swimming pools—what do all of these have in common? * Add halogen lamps to the list, and the answer becomes more clear: all involve one or more of the halogens, which form Group 7 of the periodic table of elements. * Known collectively by a term derived from a Greek word meaning "salt-producing," the halogen family consists of five elements: * Fluorine * Chlorine * Bromine * Iodine * Astatine

* The first four of these are widely used, often in combination. * The last, on the other hand, is a highly radioactive and extremely rare substance. * The applications of halogens are many and varied, including some that are dangerous, controversial, and deadly.

DAILY LIFE APPLICATIONS:
FLUORINE
Introduction: Fluorine has the distinction of being the most reactive of all the elements, with the highest electronegativity value on the periodic table. Because of this, it proved extremely difficult to isolate. Davy first identified it as an element, but was poisoned while trying unsuccessfully to decompose hydrogen fluoride. Two other chemists were also later poisoned in similar attempts, and one of them died as a result.
French chemist Edmond Fremy (1814-1894) very nearly succeeded in isolating fluorine, and though he failed to do so, he inspired his

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Transition element groups are labeled 3B, 4B, 5B, 6B, 7B, 8B (3 groups) 1B and 2B…

    • 465 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    chemical eric

    • 1212 Words
    • 4 Pages

    There are four different elements and they are 11 carbon, 17 hydrogen, 3 nitrogen and 8 oxygen.…

    • 1212 Words
    • 4 Pages
    Powerful Essays
  • Satisfactory Essays

    Red Radon Research Paper

    • 412 Words
    • 2 Pages

    This element was discovered by Friedrich ernst Dorn a German Chemistry. It was founded in 1900. It was discovered while studying Radion Dk chain.…

    • 412 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    answers2e ch02

    • 2317 Words
    • 11 Pages

    Carbon, oxygen, hydrogen, nitrogen, sulfur, and phosphorus are the chemical elements that organisms require in large amounts.…

    • 2317 Words
    • 11 Pages
    Good Essays
  • Good Essays

    Year 9 Chemistry Project

    • 711 Words
    • 3 Pages

    | - I can explain in detail Dimitri Mendeleev’s work about the periodic table and what he discovered.- I can also include information about the work of John Newlands, Lothar Meyer and John Dalton and explain how their work led to the development of Dimitri Mendeleev’s discoveries about the Periodic table.(Presentation is EXCELLENT).…

    • 711 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    The Element Promethium

    • 257 Words
    • 2 Pages

    Except in trace quantities as a product of spontaneous fission and the alpha decay of Eu^151.…

    • 257 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Cold Fluorine Gas

    • 364 Words
    • 2 Pages

    Moissan discovered fluorine in 1886. It is a chemical element with the symbol F, atomic number 9, 9 electrons and protons, 10 neutrons, and the atomic mass of 19. Being the lightest halogen, it has one stable isotope, fluorine19. At standard pressure and temperature, the element is a pale yellow gas as a liquid its a bright yellow. The electrons are located outside the nucleus of the atom. Electrons are organized in such a way that the space between them are inter dispersed. Within this space are distinct distances up to 100,00 times away from the nucleus of the atom. Reactions with fluorine are often sudden or explosive. Many substances are generally regarded as unreactive such as powdered steel, glass fragments, and asbestos fibers. Asbestos fibers are readily consumed by cold fluorine gas. Wood and even water will burn with flames when subjected to a jet of fluorine, without the need for a spark. Fluorine will melt at -219.6 C and boil at -188 C. Fluorine is added to city water supplies in the proportion of about one part per million to help prevent tooth decay. Sodium fluoride (NaF), stannous (II) fluoride (SnF2) and sodium mono fluorophosphates (Na2PO3F) all fluorine compounds added to toothpaste, also to help prevent tooth decay. Fluorine is found in nature in the form of calcium fluoride, called fluorite, which forms regular crystals. California has many fluorite deposits. There are also deposits in Alaska and Argentina Fluorine is the most electronegative and reactive of all elements. Until World War II, there was no commercial production of elemental fluorine. The nuclear bomb project and nuclear energy. Applications, however, made it necessary to produce large quantities. Fluorine and its compounds are used in producing uranium (from the hexafluoride) and more than 100 commercial fluorochemicals, including many high-temperature plastics. Hydrofluoric acid is used to etch light bulbs and other glass. Fluorochlorohydrocarbons are extensively…

    • 364 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    6. Highlight the non-metals on the Periodic Table below. Provide three characteristics about this group. (4)…

    • 468 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Chemistry and society

    • 646 Words
    • 3 Pages

    Chemistry is defined as the branch of science that deals with identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances. Chemistry is important to my everyday life and society because everything exists because of chemistry. For all things to live survive or exist, it requires the use of chemical processes. All things depend on a chemical reaction to function and survive.…

    • 646 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Student

    • 1001 Words
    • 5 Pages

    Water pollution is the addition of harmful substances to water. Some of these substances are found at home. What household chemicals might be harmful if not disposed of properly?…

    • 1001 Words
    • 5 Pages
    Powerful Essays
  • Satisfactory Essays

    Bromine Research Paper

    • 404 Words
    • 2 Pages

    Bromine is most commonly used as a disinfectant, one use is as a water purifier. Like chlorine, it is used to treat swimming pools and hot tub’s water. Another use is poisons. It could be used as an effective pesticide and agriculture. Used to prevents pests from attacking plants and other various crops. Some flame retardants contain bromine and they are found are in plastics. Such as televisions, computers, mobile phones, furniture, and mattresses. Bromine compounds are now being used for electric car batteries, by the car industry. Currently bromine compounds are also in prescription drugs. They help treat Alzheimer’s disease, cancer, pneumonia, and…

    • 404 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The fluoride levels are deadly at their limits in city water. For example, “"Everything causes cancer?" by Dr. Dean Burk, chief chemist for the U.S. National Cancer Institute, answers this question with "perhaps...but fluoride causes more human cancer death, and causes it faster than any other chemical"(Roberts). Fluoride is an organic compound with fluorine bonded to an alkyl group. It was used in large doses in water at some of Hitler’s Nazi run Concentration Camps, which was to make the Jew’s more acquiescent and easier to control. The reasoning behind this is because fluoride alters the human brain, making it harder to think clearly. Although city tap water uses low quantities of fluoride, it has the same effect just at a much lower degree. It will hurt the human brain though over time, using the analogy of an overweight person that might not ever have many bad symptoms in their health for years. But In the end, they will reap what they have sown. “Studies done by Russel (1953) and Englander (1962) showed the benefits persisted and were apparent in all teeth throughout life. More recently, Stamm (1980) found that adults in a fluoridated area had fewer root caries than adults in non-fluoridated areas. Fluoridation is likely to be a powerful influence in its control” (Shek). True, fluoride may be good for the teeth, but it does more harm than good in the rest of a person’s body. Fluoride surprisingly has affected many more people’s judgments than supposed. People in the world working today in the large cities have deranged judgment concerning how much pollution is being put into the…

    • 1064 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Fluorine

    • 1575 Words
    • 7 Pages

    What are the Physical Properties of Fluorine? The Physical properties of Fluorine are the characteristics that can be observed withoutchanging the substance into another substance. Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. The Physical Properties of Fluorine are as follows:…

    • 1575 Words
    • 7 Pages
    Good Essays
  • Better Essays

    * When Dmitri put the elements in order of atomic mass, he had trouble getting…

    • 698 Words
    • 3 Pages
    Better Essays
  • Satisfactory Essays

    What Is Francium?

    • 354 Words
    • 2 Pages

    The element francium is very pretty. Some people would even make jewelry ( mostly earrings ). Francium was discovered by “Marguerite Perey”. Francium was discovered in 1939. This discovery was inspired by “Gregor Mendel”. Some effects of francium is that it is VERY unstable.…

    • 354 Words
    • 2 Pages
    Satisfactory Essays

Related Topics