Just In Time Disaster Training Library – http://www.jitdt.org This video is part of the Just In Time Disaster Training Library. The gas is easily liquefied by cooling or by pressures of a few atmospheres at ordinary temperature. This elemen… As little as one part per thousand in air causes death within a few minutes, but less than one part per million may be tolerated. The compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Information! As little as 3.5 ppm can be detected as an odor, and 1000 ppm is likely to be fatal after a … Chlorine: Home! Its high affinity for hydrogen allows chlorine to react with many compounds containing hydrogen. Physical and chemical properties. Argon molecules are just single argon atoms, Ar. The Physical properties of Chlorine are the characteristics that can be observed without changing the substance into another substance. The smell seems to go right through your senses and definitely can irritate both the eyes and nose. Element Chlorine (Cl), Group 17, Atomic Number 17, p-block, Mass 35.45. Chlorine is a respiratory irritant. Chlorine water loses its efficiency as an oxidizing agent on standing, because hypochlorous acid gradually decomposes. Properties of the Halogens . This can be seen from the standard electrode potentialsof the X2/X couples (F, +2.866 V; Cl, +1.395 V; Br, +1.087 V; I, +0.615 V; At, approximately +0.3 V). It is 2.5 times heavier than air. The gas is soluble (dissolvable) in water. Physical and chemical properties. Atomic Weight - 35.453. Chlorine atoms have 17 electrons and the shell structure is 2.8.7. The halogens show trends in their physical. -- Created using Powtoon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presentations for free. Chlorine. Ignites steel at 100° C in the presence of soot, rust, carbon, or other catalysts. Chlorine is a member of the halogen group of elements and directly combines with almost all of the other elements. Thermophysical Properties of Fluid Systems. It is two and a half times heavier than air. The products of reaction with chlorine usually are chlorides with high oxidation numbers, such as iron trichloride (FeCl3), tin tetrachloride (SnCl4), or antimony pentachloride (SbCl5), but it should be noted that the chloride of highest oxidation number of a particular element is frequently in a lower oxidation state than the fluoride with the highest oxidation number. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. The gas irritates the mucous membranes and the liquid burns the skin. Chlorine is a very distinct smelling gas. Jump to main content Chlorine in a gas state is generally a greenish yellow colour and in its liquid state is a clear amber colour. Chlorine is a greenish-yellow, diatomic, dense gas with a sharp smell (the smell of bleach). Chlorine is a member of the halogen group of elements and directly combines with almost all of the other elements. Chlorine combines with almost all the elements, except for the lighter noble gases, to give chlorides; those of most metals are ionic crystals, whereas those of the semimetals and nonmetals are predominantly molecular. This means that two chlorine atoms join together to form Cl 2. The better we know the nature of the substance the better we are able to understand it. Chlorine is a greenish-yellow gas. (7) The chemical formula for chlorine is Cl 2, and its molecular weight is 70.90 g/mol. Chlorine, Cl 2, is a much smaller molecule with comparatively weak van der Waals attractions, and so chlorine will have a lower melting and boiling point than sulphur or phosphorus. Reactions to substances may be brought about by changes brought about by burning, rusting, heating, exploding, tarnishing etc. Calcium chloride is a chemical compound made up of the elements, calcium and chlorine. Compare Magnesium and Chlorine on the basis of their properties, attributes and periodic table facts. PHYSICAL PROPERTIES/CHEMICAL PROPERTIES. Chlorine has a high electronegativity and a high electron affinity, the latter being even slightly higher than that of fluorine. The gas is harmful to nature. The same can be said about their physical properties. Physical and Chemical Properties of Halogens. It is toxic. 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. Compare elements on more than 90 properties. Chlorine has the electron configuration [Ne]3s23p5, with the seven electrons serving as its valence electrons in the third and outermost shell. 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