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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
  • 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
  • 6. 12: Halogens - Chemistry LibreTexts
    The term “halogen” means “salt-former” because these elements will readily react with alkali metal and alkaline earth metals to form halide salts The halogens all have the general electron configuration n s 2 n p 5, giving them seven valence electrons
  • Halogens - Chemistry Learner
    Halogens are located on the right and found in group VIIa (new IUPAC) or group 17 (CAS) of the periodic table Halogens have physical and chemical properties which are typical of non-metal
  • Halogens - Chemistry Encyclopedia - uses, elements, gas, number, name . . .
    The halogens are the family of chemical elements that includes fluorine (atomic symbol F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At) The halogens make up Group VIIA of the Periodic Table of the elements Elemental halogens are diatomic molecules
  • 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
  • G4 Halogen Bulb, 10 Pack 12V 10W Bi-pin Base, High Output . . . - Amazon
    G4 Halogen Bulb, 10 Pack 12V 10W Bi-pin Base, High Output 150LM 3000Hrs Long Lifetime, Dimmable, CRI100 2800K Warm White, for Cabinet Light Bulbs - Amazon com 1, Save Money Energy: Made of high quality tungsten wire, this G4 bulb can last up to 3000 hours, equivalent to switch on off 8000 times, saving you the cost of frequent bulb replacement 2, Protect your eyes: Non-flickering light
  • Halogens - ChemTalk
    The halogen family includes fluorine, chlorine, bromine, iodine, astatine, and tennessine, element 117 – the most recent element to be discovered In this article, we focus just on the first four halogens





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