How Many Atoms In Chlorine
chlorine
element
Alternate titles: Cl
Summary
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chlorine (Cl), chemical element, the second lightest member of the halogen elements, or Grouping 17 (Group VIIa) of the periodic table. Chlorine is a toxic, corrosive, dark-green yellow gas that is irritating to the eyes and to the respiratory arrangement.
| atomic number | 17 |
|---|---|
| atomic weight | 35.446 to 35.457 |
| melting point | −103 °C (−153 °F) |
| boiling point | −34 °C (−29 °F) |
| density (1 atm, 0 °C or 32 °F) | 3.214 1000/litre (0.429 ounce/gallon) |
| oxidation states | −1, +1, +iii, +v, +vii |
| electron configuration | 1south 2iidue south 22p 63s twoiiip 5 |
History
Rock salt (mutual salt, or sodium chloride) has been known for several thou years. It is the main constituent of the salts dissolved in seawater, from which it was obtained in aboriginal Egypt past evaporation. In Roman times, soldiers were partially paid in salt (salarium, the root of the mod word salary). In 1648 the High german chemist Johann Rudolf Glauber obtained a strong acid, which he chosen spirit of salt, past heating moist salt in a charcoal furnace and condensing the fumes in a receiver. Afterwards he obtained the same product, now known to be hydrochloric acid, by heating salt with sulfuric acid.
In 1774 the Swedish pharmacist Carl Wilhelm Scheele treated powdered blackness oxide of manganese with hydrochloric acid and obtained a light-green-yellowish gas, which he failed to recognize as an chemical element. The true nature of the gas as an chemical element was recognized in 1810 by English pharmacist Humphry Davy, who later named it chlorine (from the Greek chloros, meaning "yellow green") and provided an caption for its bleaching action.
Occurrence and distribution
Apart from very pocket-size amounts of free chlorine (Cl) in volcanic gases, chlorine is usually found only in the form of chemic compounds. It constitutes 0.017 per centum of Earth's chaff. Natural chlorine is a mixture of two stable isotopes: chlorine-35 (75.53 percent) and chlorine-37 (24.47 pct). The most common compound of chlorine is sodium chloride, which is found in nature as crystalline rock common salt, often discoloured by impurities. Sodium chloride is likewise nowadays in seawater, which has an average concentration of nearly ii percent of that salt. Certain landlocked seas, such as the Caspian Bounding main, the Dead Sea, and the Great Common salt Lake of Utah, contain upwards to 33 pct dissolved table salt. Small quantities of sodium chloride are present in claret and in milk. Other chlorine-containing minerals are sylvite (potassium chloride [KCl]), bischofite (MgCl2 ∙6HtwoO), carnallite (KCl∙MgClii ∙6H2O), and kainite (KCl∙MgSO4 ∙3H2O). Information technology is found in evaporite minerals such as chlorapatite and sodalite. Free hydrochloric acid is present in the stomach.
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Present-day common salt deposits must have been formed past evaporation of prehistoric seas, the salts with the to the lowest degree solubility in h2o crystallizing first, followed by those with greater solubility. Because potassium chloride is more than soluble in h2o than sodium chloride, sure rock salt deposits—such equally those at Stassfurt, Germany—were covered by a layer of potassium chloride. In gild to gain access to the sodium chloride, the potassium salt, of import as a fertilizer, is removed kickoff.
How Many Atoms In Chlorine,
Source: https://www.britannica.com/science/chlorine#:~:text=Chlorine%20molecules%20are%20composed%20of%20two%20atoms%20(Cl2).
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