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chemical properties of halogens

(b) This is because halogens are reactive non-metals. Covers the halogens in Group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). The halogens are extremely reactive, while the noble gases are mainly inert. As a general rule, fluorine is the most reactive halogen and astatine is the least reactive. Fluorine, chlorine, bromine, iodine, and astatine definitely are halogens. They have relatively low melting and boiling points that increase steadily down the group. Each element can usually be classified as a metal or a non-metal based on their general Physical and Chemical Properties. Group 7 is on the right-hand side of the periodic table, next to group 0 The halogens show trends in their physical and chemical properties . However, some like helium, almost have no compounds at all. However, halogens readily combine with most elements and are never seen uncombined in nature. What this means is that their molecules exist with two atoms each. To form bonds with noble gases, a lot of energy is required to form those bonds. In these compounds, halogens are present in the form of halide anions with a charge of -1 (for example, Cl -, Br -).The ending -id indicates the presence of halide anions; for example, Cl is called “chloride”.. Only some noble gases tend to form compounds, such as xenon and krypton. Depending on who you ask, there are either 5 or 6 halogens. Halogens is a term used in Periodic Chemistry when classifying the chemical elements. Includes trends in atomic and physical properties, the redox properties of the halogens and their ions, the acidity of the hydrogen halides, and the tests for the halide ions. All halogens have 7 electrons in their outer shells, giving them an oxidation number of -1. Cl-, Br-, etc. In these compounds, halogens are present as halide anions with charge of -1 (e.g. ). All halogens form Group 1 salts with similar properties. Physical and Chemical Properties of Group 17 Elements Group 17 Elements: The Halogens The elements in Group 17 are: Fluorine Chlorine Bromine Iodine Astatine These elements are known as halogens. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". In addition, the chemical properties of halogens allow them to act as oxidizing agents - to oxidize metals. CHEMICAL PROPERTIES: Molecules of all halogens are diatomic. The covalent bond between the two atoms has some ionic character, the less electronegative halogen, X, being oxidised and having a partial positive charge. Types of Halogens . The elements in group 7 are called the halogens. Just like with the alkali metals, the halogens are another example of a well-studied group of elements which display trends in their common properties as you go down the group. (a) Halogen is a Greek word which means salt-former’. Noble gases also have octet rule shells, which causes the little reactivity associated with them. All halogens form salts of group I with similar properties. halogen molecule structure model fluorine F 2 chlorine Cl 2 bromine Br 2 iodine I 2 Halogens have seven valence electrons Because halogens have one electron missing, they form negative ions and are highly reactive Halogens display physical and chemical properties typical of nonmetals. The number of outer shell electrons dictates the chemical properties of an element. The interhalogens of form XY have physical properties intermediate between those of the two parent halogens. The halogens are five non-metallic elements found in group 17 of the periodic table. they exist naturally in various mineral salts in […] Near room temperature, the halogens span all of the physical states: Fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid. 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