halogen atom

collocation in English

meaningsofhalogenandatom

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withatom.
halogen
noun[C]
uk
/ˈhæl.ə.dʒen/us
/ˈhæl.ə.dʒen/
a member of a group of five particular ...
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atom
noun[C]
uk
/ˈæt.əm/us
/ˈæt̬.əm/
the smallest unit of any chemical element, consisting of a positive nucleus surrounded by negative electrons. Atoms can combine to form ...
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(Definition ofhalogenandatomfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofhalogen atom

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
In this reaction a hydrogen atom is removed from the alkane, then replaced by ahalogenatomby reaction with a diatomic halogen molecule.
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This compound can be seen as a methane molecule, whose four hydrogen atoms are each replaced with a differenthalogenatom.
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In primary (1) haloalkanes, the carbon that carries thehalogenatomis only attached to one other alkyl group.
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A halide ion is ahalogenatombearing a negative charge.
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Halogenated ethers differ from other ethers because they contain at least onehalogenatomin each molecule.
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They also asserted that a positively chargedhalogenatomis isoelectronic with oxygen and that carbon and bromine have comparable ionization potentials.
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In halogen bonding, ahalogenatomis the electron acceptor.
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The resulting radicals abstract hydrogen from tributyltin hydride to a tributyltin radical which in turn abstracts thehalogenatomto form an alkyl radical.
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As compared to hydrogen bonding, thehalogenatomtakes the place of the partially positively charged hydrogen as the electrophile.
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What differentiates a halogenated ether from other types of ethers is the substitution (halogenation) of one or more hydrogen atoms with ahalogenatom.
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Haloalcohols, especially chloroalcohols and bromoalcohols (in which thehalogenatomis chlorine or bromine, respectively) are typically synthesized by halogenation of alkenes in the presence of water or an alcohol.
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This polarity can be reversed when a primary or secondary amine is substituted with a good leaving group (such as ahalogenatomor an alkoxy group).
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This can be further subdivided into two types of reaction processes, the first of which, hydrogenolysis, is the replacement of thehalogenatomwith a hydrogen atom.
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The reaction of the alkyl nitrite with an aromatic amine in a halogenated solvent produces a radical aromatic species, this then abstracts ahalogenatomfrom the solvent.
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Thus, the rare gas halide molecules are formed by an ionic bond since the excited electron of the noble gas is partly transferred to thehalogenatom.
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Halo-uranates are compounds in which one oxygen atom is replaced by two halogen atoms.
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The exchange reaction works with iodoform and bromoform, and the exchange of the first two halogen atoms by fluorine is vigorous.
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The halogen atoms differ greatly in size and charge from hydrogen and from each other.
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However, the standard method for removing halogen atoms requires the use of stoichiometric organotin reagents, such as tributyltin hydride.
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The germanium hydrohalides with one, two and three halogen atoms are colorless reactive liquids.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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