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- https://chem.libretexts.org/Courses/Westminster_College/CHE_180_-_Inorganic_Chemistry/14%3A_Chapter_14_-_p-Block_Elements/14.5%3A_Group_17/Physical_Properties_of_the_Halogens/Atomic_and_Physical_Properties_of_HalogensIn the larger atom, the attraction from the more positive nucleus is offset by the additional screening electrons, so each incoming electron feels the effect of a net +7 charge from the center. As the...In the larger atom, the attraction from the more positive nucleus is offset by the additional screening electrons, so each incoming electron feels the effect of a net +7 charge from the center. As the atoms get larger down the group, the bonding pair is further from the nuclei and the strength of the bond should, in theory, decrease, as indicated in the figure below.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Block/2_p-Block_Elements/Group_17%3A_The_Halogens/Z017_Chemistry_of_Chlorine_(Z17)Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is commonly found in nature bonded t...Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is commonly found in nature bonded to many different elements.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/05%3A_Electrons_in_Atoms/5.19%3A_Valence_ElectronsThis page explains valence electrons as the outermost electrons in an atom's highest energy level, which determine reactivity. It highlights that elements react differently based on their valence elec...This page explains valence electrons as the outermost electrons in an atom's highest energy level, which determine reactivity. It highlights that elements react differently based on their valence electron count, with lithium having one, beryllium two, and boron three. As one progresses across a period, valence electrons increase, reaching eight in neon. The summary also distinguishes between valence and inner shell electrons, noting that only valence electrons affect reactivity.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(LibreTexts)/08%3A_Chemistry_of_the_Main_Group_Elements/8.13%3A_The_Halogens/8.13.04%3A_Chemistry_of_Chlorine_(Z17)Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is commonly found in nature bonded t...Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is commonly found in nature bonded to many different elements.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/06%3A_The_Periodic_Table/6.12%3A_HalogensThis page discusses halogens, including their high reactivity, electron configuration with seven valence electrons, and physical states at room temperature—fluorine and chlorine are gases, bromine is ...This page discusses halogens, including their high reactivity, electron configuration with seven valence electrons, and physical states at room temperature—fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid. It highlights their tendency to exist in nature combined with other substances, such as salts found in the ocean.
- https://chem.libretexts.org/Courses/Westminster_College/CHE_180_-_Inorganic_Chemistry/14%3A_Chapter_14_-_p-Block_Elements/14.5%3A_Group_17/Chemical_Properties_of_the_Halogens/Oxidizing_Ability_of_the_Group_17_ElementsConsider a reaction between one halogen—chlorine, for example—and the ions of another—iodide, in this case. The iodide ions are dissolved from a salt such as sodium iodide or potassium iodide. The so...Consider a reaction between one halogen—chlorine, for example—and the ions of another—iodide, in this case. The iodide ions are dissolved from a salt such as sodium iodide or potassium iodide. The sodium or potassium ions are spectator ions and therefore irrelevant to the reaction, which proceeds as follows:
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(LibreTexts)/08%3A_Chemistry_of_the_Main_Group_Elements/8.13%3A_The_Halogens/8.13.02%3A_Chemical_Properties_of_the_Halogens/8.13.2.05%3A_Oxidizing_Ability_of_the_Group_17_ElementsConsider a reaction between one halogen—chlorine, for example—and the ions of another—iodide, in this case. The iodide ions are dissolved from a salt such as sodium iodide or potassium iodide. The so...Consider a reaction between one halogen—chlorine, for example—and the ions of another—iodide, in this case. The iodide ions are dissolved from a salt such as sodium iodide or potassium iodide. The sodium or potassium ions are spectator ions and therefore irrelevant to the reaction, which proceeds as follows:
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Elements_Organized_by_Block/2_p-Block_Elements/Group_17%3A_The_Halogens/0Group_17%3A_Physical_Properties_of_the_Halogens/Group_17%3A_General_Properties_of_HalogensHowever, if the halogen is bonded to oxygen or to another halogen, it can adopt different states: the -2 rule for oxygen takes precedence over this rule; in the case of two different halogens bonded t...However, if the halogen is bonded to oxygen or to another halogen, it can adopt different states: the -2 rule for oxygen takes precedence over this rule; in the case of two different halogens bonded together, the more electronegative atom takes precedence and adopts the -1 oxidation state.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/06%3A_The_Periodic_Table/6.21%3A_Periodic_Trends-_ElectronegativityThis page explains electronegativity, defining it as an atom's ability to attract electrons. It notes that electronegativity increases across periods and decreases down groups, highlighting fluorine a...This page explains electronegativity, defining it as an atom's ability to attract electrons. It notes that electronegativity increases across periods and decreases down groups, highlighting fluorine as the most electronegative element. Metals generally have low electronegativities due to their tendency to lose electrons, while nonmetals gain electrons, leading to higher values.
- https://chem.libretexts.org/Courses/Westminster_College/CHE_180_-_Inorganic_Chemistry/14%3A_Chapter_14_-_p-Block_Elements/14.5%3A_Group_17/Physical_Properties_of_the_Halogens/General_Properties_of_HalogensHowever, if the halogen is bonded to oxygen or to another halogen, it can adopt different states: the -2 rule for oxygen takes precedence over this rule; in the case of two different halogens bonded t...However, if the halogen is bonded to oxygen or to another halogen, it can adopt different states: the -2 rule for oxygen takes precedence over this rule; in the case of two different halogens bonded together, the more electronegative atom takes precedence and adopts the -1 oxidation state.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(LibreTexts)/08%3A_Chemistry_of_the_Main_Group_Elements/8.13%3A_The_Halogens/8.13.02%3A_Chemical_Properties_of_the_Halogens/8.13.2.04%3A_More_Reactions_of_HalogensThis page describes reactions of the halogens that do not fall under the other categories in other pages in this section. All the reactions described here are redox reactions.
