Preview

The Element: Chlorine

Better Essays
Open Document
Open Document
1193 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Element: Chlorine
The Element: Chlorine

General Information

We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements.
Chlorine is a nonmetal. It is estimated that 0.045% of the earth's crust and 1.9% of sea water are chlorine. Chlorine combines with metals and nonmetals and organic materials to form hundreds of chlorine compounds. Chlorine is about 2.5 times as dense as air and moderately soluble in water, forming a pale yellowish green solution.
Chlorine is so reactive that it never occurs free in nature.

Chemical Properties

Chlorine is in the halogen family, and like all the other halogen elements chlorine has a strong tendency to gain one electron and become a chloride ion. Chlorine readily reacts with metals to form chlorides, most of which are soluble in water. Chlorine also reacts directly with many nonmetals such as sulfur, phosphorus, and other halogens. Chlorine can support combustion; if a candle were to be thrown into a vessel of chlorine, it would continue to burn, releasing dense, black clouds of smoke, The chlorine combines with hydrogen of the paraffin, forming hydrogen chloride, and uncombined carbon is left in the form of soot. Soot is black residue from fuel. Chlorine replaces iodine and bromine from their salts. Dry chlorine is somewhat inert or not able to move, but moist chlorine unites directly with most of the elements. History Chlorine was discovered in 1774 by Karl Scheele. Humphry Davy proved that chlorine was an element. Extensive production began 100 years later. During the 20th Century. The amount of Chlorine used was considered a measure of industrial growth. In, 1975 chlorine productions ranked seventh on the list of largest-volume chemicals
produced

You May Also Find These Documents Helpful

  • Good Essays

    All In The Family Lab

    • 413 Words
    • 2 Pages

    Simply, if there was a color change when comparing the initial color of the reactant to the residing color after a Halide was added, then a chemical reaction had occurred. It was found that a reaction happened between Cl2 and both of the Halides it was mixed with, Br2 only had a reaction with one of the Halides it combined with, and I2 had no reactions with any of the Halides it was tested with. So, this meant that the reactivity level of Chlorine was the highest, Bromine was moderately lower than Chlorine, and Iodine had the lowest of them all. Simply, these results can be explained by the concept of electronegativity, which refers to the ability of a certain atom to attract electrons. Since electronegativity depends highly on an atom’s atomic radius in relation to the number of protons present in its nucleus, Chlorine was seen to have the highest reactivity because it had the smallest atomic radius in comparison to how many protons it contains in the nucleus of one atom. Since the radius was smaller, it was able to attract electrons from the positive protons in its nucleus with a higher force, and therefore have a higher reactivity…

    • 413 Words
    • 2 Pages
    Good Essays
  • Good Essays

    hydrogen chloride has properties: Hydrogen chloride has one molecule of hydrogen and one molecule of chlorine: Hydrogen chloride has a very powerful smell. It is in the form of a gas but only when it is at room temperature which is approximately 25 Celsius and when the pressure is high. The solubility of hydrogen chloride is very high this means that it can dissolve in water quickly because it dissolves many times in its own solution (the gas form of hydrogen chloride). It is very soluble because the smaller the chain of the molecules are then the energy required in small quantities however if the chain is long then it will need more energy so that means that the longer chain will have a slow reaction and the longer the chain the chances…

    • 663 Words
    • 3 Pages
    Good Essays
  • Good Essays

    What is Magnesium chloride(MgCl2)? What is it used for and why? What does it look like? Magnesium chloride is the name of a chemical formula of MG CL two. This is a salt and they are a typical ion halide. halides are very soluble to water. magnesium chloride is used for deicing on highways in sidewalks and also parking lots it is a good source of de-icing. The color that it appears is white or colorless crystalline solid. What is magnesium or what is chloride? whare are they located?…

    • 461 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Homework 5 Chem 157

    • 379 Words
    • 2 Pages

    3-hydroxy-3methylglutaryl-CoA reductase (HMGR) catalyzes the formation of mevalonate in the biosynthesis of sterols and isoprenoids. The activity of this enzyme is regulated physiologically through synthesis, degradation and phosphorylation to maintain to maintain the concentration of the mevalonate-derived products. Transcription and translation of HMGR increase when the concentrations of products of mevalonate pathway are low while on the other hand when the concentrations are high, the intracellular HMGR concentration decreases rapidly. The third level of regulation is achieved by phosphorylation of S872 by AMP-activated protein Kinase, which decreases the enzyme’s activity.…

    • 379 Words
    • 2 Pages
    Satisfactory Essays
  • Best Essays

    chemistry

    • 3236 Words
    • 13 Pages

    Synthesis, Recrystallization of β-D-Glucose Pentaacetate from its Original D-Glucose and it comparison with literature though Melting point, TLC, IR, 1H and 13C NMR…

    • 3236 Words
    • 13 Pages
    Best Essays
  • Good Essays

    Chemistry

    • 470 Words
    • 2 Pages

    Baking soda (NaHCO3) reacts with acidic substances (HA) in cake batter in a double replacement reaction:…

    • 470 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Chlorine was founded by Carl Wilhelm Scheele in 1774. Chlorine's normal phase of matter is gas and it has a classification as a non metal. Chlorine is also apart of the halogens family. Chlorines boiling point in Celsius is –34.04, but the melting point is –101. Its origin is Greek. The atomic number is 17. Chlorine has 17 protons and electrons and 18 neutrons.…

    • 64 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Sodium hypochlorite is considered one of the most efficient irrigant in endodontics 1-4. Due to its antimicrobial, tissue dissolving properties and low cost, it is one of the most widely accepted irrigant in Endodontic practice 5-8. Sodium hypochlorite as a solution is relatively an unstable compound. On exposure to organic compounds, heat, light, air and metals, the available chlorine ions reduce and there is subsequent loss of tissue dissolving and antimicrobial properties 9-10. Recent study determined the effect these factors exert on sodium hypochlorite solution in the dental practice environment 11. However, there are no recent data on the incidence of sodium hypochlorite use in endodontics and proportion of dental practitioners…

    • 346 Words
    • 2 Pages
    Good Essays
  • Good Essays

    The Element Tin

    • 638 Words
    • 3 Pages

    Tin is a chemical element with the symbol Sn from the Latin word “stannum.” Its atomic number is 50 and its atomic mass is 118.71. Tin is classified in the 'Other Metals' section which can be located in groups 13, 14, and 15 of the Periodic Table. All of these elements are solid, have a relatively high density and are opaque. This silvery, ductile metal is not easily oxidized in air and resists corrosion. Tin is usually malleable, but when cooled it is very brittle. It is found in many alloys and is used to coat other metals. It can be alloyed with copper to make bronze. Pewter alloys contain about 85% to 99% tin. Tin is obtained from the mineral ore cassiterite, where it occurs as an oxide. It is extracted by roasting cassiterite in a furnace with carbon. Tin makes up only about 0.001% of the earth's crust and is chiefly mined in Malaysia and found in Bolivia, Indonesia, Thailand, and Nigeria. Tin was discovered by the ancients nearly 5500 years ago and was mentioned in the Old Testament. It is one of the earliest metals known and they think it was first mined in South-East England. Because of its hardening effect on copper, tin was used in bronze implements as early as 3,500 BC.…

    • 638 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Chloroform Research Paper

    • 382 Words
    • 2 Pages

    Chloroform is a halogenated organic compound known by its nonsystematic name. The chemical name for chloroform is trichloromethane. The molecular formula of this synthetic chemical is CHCl3. A particular odor, considered by some to be pleasant, will let one know chloroform is in the room. Because without it, the lack of color of this clear liquid makes it difficult to identify. Be fair warned: trichloromethane is volatile. It also sinks in water because it is denser. Chloroform is nonflammable under most conditions. The chlorine atoms in trichloromethane are more electronegative than the carbon atom, which is to say that the electrons are more greatly attracted to the chlorine atoms. Consequently, the chlorine has a partial negative…

    • 382 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    chemistry

    • 532 Words
    • 3 Pages

    As the two reactant salts and sodium chloride are soluble in water but calcium carbonate is insoluble, the ionic equation for the reaction is that we present only the ions that react (after removing the spectator ions)we have the net equation as below…

    • 532 Words
    • 3 Pages
    Satisfactory Essays
  • Better Essays

    Hydrogen is recognized as the simplest and lightest chemical element in the periodic table; even though it is identified as one of the top elements in abundance in the world (consisting of 0.9 percent of the total mass on earth), it is considered to be the most abundant element in the entire universe. It is a gaseous element with the atomic symbol being H. It is usually categorized under the first group of the periodic table known as the alkali metals. It contains only one electron that revolves around one single energy level and it is the only element that is able to exist without any neutrons in its nucleus. It is diatomic, meaning that its molecules are composed of 2 atoms, yet it is able to break off into free atoms when placed in high temperatures. Hydrogen is tasteless, odorless, and colorless consisting of a melting point of -259.2° C, a boiling point of -252.77° C, and a density of 0.089 g/liters. It is highly flammable element that burns and constructs dangerous and explosive mixtures and reacts destructively with oxidants. Most of the time hydrogen is identified as a nonmetal, however there are occasions in which it becomes a liquid metal. This is caused when immense amount of pressure is added to it such as when it’s found in gas like planets including Jupiter and Saturn. Hydrogen consists of 3 isotopes including hydrogen-1, known as protium, hydrogen-2, deuterium, and hydrogen-3, tritium. The first isotope if the most abundant one, while the third one is the least. Henry Cavendish, an English scientist who developed hydrogen by mixing zinc along with hydrochloric acid, first identified it as a distinct element in1766. However, Antoine Lavoisier, a French scientist, named it in 1783. The name came from the Greek word “hydro”, which means water and “genes” meaning forming since it is one of the two elements that make up a water molecule.…

    • 1154 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    Chemistry Assignment

    • 302 Words
    • 2 Pages

    Methane to Butane are colourless gases, while propane and butane are easily condensed under pressure and commonly sold as liquids. In addition, alkanes containing between five carbons to nineteen are colourless liquids. Petrol and kerosene are mixtures of liquid alkanes, with dye added to them for safety precautions. Furthermore, alkanes are used as fuels because they will combust since large amounts of energy are released due to the reason that the longer the chain, the more bonds are broken, and the greater the energy released. With this in mind, alkanes that are used as components of petrol should be stored in metal containers with narrow mouths and tightly sealed lids to prevent the vapour from escaping and to prevent a naked flame or spark from igniting the vapour or air mixture.…

    • 302 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    The Chloralkali Industry

    • 872 Words
    • 4 Pages

    The chloralkali process is responsible for the production of chlorine gas (Cl2), sodium hydroxide (NaOH) hence the name chloralkali. The process is also responsible for the production of hydrogen gas (H2). These three substances are used to make products that are essential to people’s lives. The chloralkali process does have environmental impacts; however, there are three methods used in the cholralkali process and work is being done to favour processes that are more environmentally friendly. The benefits of the chloralkali process to people’s lives far outweigh the disadvantages which makes it a process fundamental to human life.…

    • 872 Words
    • 4 Pages
    Better Essays
  • Powerful Essays

    chemistry

    • 2781 Words
    • 9 Pages

    UV Spectrophotometer has 4 main components which is the UV light source, the sample, detector and the processor/recorder. Spectrophotometry is a technique that uses the absorbance of light by an analyte (the substance to be analyzed) at a certain wavelength to determine the analyte concentration. Useful wavelengths for spectrophotometry range from 185 to 3,000 nm. Spectroscopy is one of the most powerful analytical techniques in modern science. Spectroscopy works by correlating the concentration of a species in solution to the amount of light it absorbs. It included the observations of absorption or emission of electromagnetic radiation resulting from transitions of atoms or molecules from one energy level to other level. The spectrophotometer measures how much light is absorbed at a given wavelength. When an atom or molecule absorbs energy, electrons are promoted from their ground state to an excited state. When a molecule at a ground state absorbs energy, it called transition to a higher energy state.The higher energy state can be said as excited state. In a molecule, the atoms can rotate and vibrate with respect to each other. These vibrations and rotations also have discrete energy levels, which can be considered as being packed on top of each electronic level.…

    • 2781 Words
    • 9 Pages
    Powerful Essays

Related Topics