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atomic hydrogen |
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atomic hydrogen [ə′täm·ik ′hī·drə·jən] (chemistry) Gaseous hydrogen whose molecules are dissociated into atoms. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Precious-metal catalysts break the tight bond between the two hydrogen atoms in the gas, freeing them to move to various other molecules. The two circles in the upper-left illustrate the universal time/length 'yardstick' of a hydrogen atom (don't ask). The carboxyl hydrogen atom was placed in a position calculated from the coordinates of the donor and acceptor carboxyl oxygen atoms, but had no effect on the refinement. |
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