from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Plural form of hydrogen.


Sorry, no etymologies found.


  • The actual chemical explanation, of course, is that the lone electron pair in a water molecule forces the hydrogens away from 180 degrees, with the result that the electric charge is unevenly distributed.

    Attached to Strings

  • Some kind of blah blah blah about watching plumes and looking for the hydrogens and history of Earth and what not.

    Breakfast Links: Moon Attack, The Fall & Coraline : #comments

  • CDK atom typing is used for a variate of algorithms, including counting implicit hydrogens, which many other algorithms need to know.

    Bioclipse for CDK Developers #1

  • The H_2O molecule appears as a “Mickey Mouse” head-like structure, where the hydrogens form the “ears.”

    Quantum Hyperion

  • "Just make sure your molecular structures have explicit hydrogens and 3D coordinates, and you're fine."

    Molecular QSAR descriptors in the CDK

  • Just make sure your molecular structures have explicit hydrogens and 3D coordinates, and you're fine.

    Archive 2008-07-01

  • But every so often, it does hit right, and it grabs one of the hydrogens.

    Archive 2008-02-01

  • Well again, it will be the one it hit, but some of the hydrogens are more labile than others, so the HO is more likely to bounce if it hits one of the methyl groups, which have “primary” hydrogens because they are on primary carbons, and more likely to react if it hits the alkyl chain, on a “secondary” hydrogen.

    Archive 2008-02-01

  • If you start with ethane CH3CH3 and replace all the hydrogens on one methyl group with chlorine, you get methyl chloroform.


  • If you create an HO radical, that can pull off one of the hydrogens, and that, after the usual reactions, gives you chloral, a tri-chlorinated version of acetaldehyde.



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