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halogen    音标拼音: [h'ælədʒən]
n. 卤素

卤素

halogen
n 1: any of five related nonmetallic elements (fluorine or
chlorine or bromine or iodine or astatine) that are all
monovalent and readily form negative ions

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  • Halogen - Wikipedia
    Halogen lamps are a type of incandescent lamp using a tungsten filament in bulbs that have small amounts of a halogen, such as iodine or bromine added This enables the production of lamps that are much smaller than non-halogen incandescent lightbulbs at the same wattage
  • Halogen | Elements, Examples, Properties, Uses, Facts | Britannica
    Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts) Learn more about the properties of halogens in this article
  • Halogen Elements - List and Facts
    Learn about the halogen elements See where they are on the periodic table Get the list of halogens and learn about their properties
  • Pool and Spa Supplies Equipment | Halogen Supply Company
    Halogen Supply Company is a distributor of swimming pool spa supplies for both residential and commercial applications
  • List of Halogens (Element Groups) - ThoughtCo
    The halogens are the elements in group 17 of the periodic table This is the next-to-last column of elements on the righthand side of the table The halogen elements are fluorine, chlorine, bromine, iodine, astatine, and possibly tennessine The halogens are highly reactive nonmetallic elements
  • Halogens: The Versatile Elements Shaping Our World
    The halogen elements, including fluorine, chlorine, bromine, iodine, and astatine, each exhibit unique reactivity due to their electron configurations Fluorine is known to be the most aggressive halogen element, readily forming compounds with almost any other element
  • Halogen | Chemistry Wiki | Fandom
    The Halogens are the elements in group 17 of the periodic table The halogens are a series of nonmetal elements made up by fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts) The halogens are reactive substances They react with most metals and some nonmetals
  • Halogen Valve Systems | Emergency Gas Shut-Off Valves for Hazardous . . .
    Halogen Valve Systems is the leading manufacturer of electronically actuated emergency valve shutoff systems for chlorine and sulfur dioxide 150 lb cylinders and ton containers
  • Atomic and Physical Properties of Halogens - Chemistry LibreTexts
    Sections below cover the trends in atomic radius, electronegativity, electron affinity, melting and boiling points, and solubility, including a discussion of the bond enthalpies of halogen-halogen and hydrogen-halogen bonds
  • What Do Halogens Mean? A Beginner’s Guide to Group 17 Elements
    Halogens are the Group 17 elements in the periodic table— fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At) They’re highly reactive nonmetals that form salts with metals and are essential in disinfection, medicine, and industry





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