220:
461:
of stars like the Sun and cooler; its importance was first noted in the 1930s. The ion absorbs photons with energies in the range 0.75–4.0 eV, which ranges from the infrared into the visible spectrum. Most of the electrons in these negative ions come from the ionization of metals with low first
727:
Bryant, H. C.; Dieterle, B. D.; Donahue, J.; Sharifian, H.; Tootoonchi, H.; Wolfe, D. M.; Gram, P. A. M.; Yates-Williams, M. A. (1977). "Observation of
Resonances near 11 eV in the Photodetachment Cross Section of the H Ion".
45:
584:
515:
The term hydride is probably most often used to describe compounds of hydrogen with other elements in which the hydrogen is in the formal −1
259:
519:. In most such compounds the bonding between the hydrogen and its nearest neighbor is covalent. An example of a hydride is the
662:
234:
354:
431:
57:
713:
381:
that has captured an extra electron. The hydrogen anion is an important constituent of the atmosphere of
198:
17:
27:
This article is about the anion of hydrogen. For binary compounds of hydrogen with another element, see
851:
767:
215:
576:
404:
The binding energy of H equals the binding energy of an extra electron to a hydrogen atom, called
730:
451:
323:
856:
615:
398:
149:
819:
776:
739:
671:
624:
484:
467:
109:
85:
613:
Wildt, Rupert (1939). "Negative Ions of
Hydrogen and the Opacity of Stellar Atmospheres".
8:
75:
823:
780:
743:
675:
628:
129:
792:
687:
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219:
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405:
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827:
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because the result is a neutral atom (rather than an ion) and a free electron.
348:
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845:
378:
556:
498:
463:
415:
765:
520:
495:
470:. The process which ejects the electron from the ion is properly called
788:
683:
491:
310:
292:
140:
810:
Hill, R. N. (1977). "Proof that the H Ion Has Only One Bound State".
550:
347:
Except where otherwise noted, data are given for materials in their
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108:
505:
426:
173:
28:
44:
483:
H also occurs in the Earth's ionosphere and can be produced in
726:
120:
98:
203:
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in 1929. H is unusual because, in its free form, it has no
382:
386:
374:
457:
source at visible and near-infrared wavelengths in the
843:
707:From White Dwarfs to Black Holes: The Legacy of
490:Its existence was first proven theoretically by
185:
84:
434:). The total ground state energy thus becomes
585:National Center for Biotechnology Information
577:"Hydride - PubChem Public Chemical Database"
704:
218:
148:
597:
214:
14:
844:
508:anion is hydrogen that has the formal
764:
663:Journal of Astrophysics and Astronomy
648:
646:
612:
462:ionization potentials, including the
246:Key: KLGZELKXQMTEMM-UHFFFAOYSA-N
128:
809:
705:Srinivasan, G. (1999). "Chapter 5".
401:to a nucleus containing one proton.
389:. In chemistry, this ion is called
652:
450:The hydrogen anion is the dominant
176:
24:
643:
408:of hydrogen. It is measured to be
25:
873:
501:, as was finally proven in 1977.
285:
43:
351:(at 25 °C , 100 kPa).
803:
758:
720:
698:
655:"The Negative Ion of Hydrogen"
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591:
569:
13:
1:
602:. W. H. Freeman. p. 102.
562:
445:
432:Electron affinity (data page)
7:
714:University of Chicago Press
553:, another very simple anion
538:
10:
878:
832:10.1103/PhysRevLett.38.643
752:10.1103/PhysRevLett.38.228
26:
345:
316:
272:
255:
230:
68:
56:
51:
42:
598:Mihalas, Dmitri (1978).
377:of hydrogen, that is, a
34:Negative ion of hydrogen
812:Physical Review Letters
731:Physical Review Letters
768:Zeitschrift für Physik
653:Rau, A. R. P. (1996).
616:Astrophysical Journal
485:particle accelerators
399:electromagnetic force
58:Systematic IUPAC name
824:1977PhRvL..38..643H
781:1929ZPhy...57..815B
744:1977PhRvL..38..228B
676:1996JApA...17..113R
629:1939ApJ....90..611W
600:Stellar Atmospheres
581:The PubChem Project
300: g·mol
39:
789:10.1007/BF01340659
775:(11–12): 815–821.
684:10.1007/BF02702300
504:In chemistry, the
355:Infobox references
37:
547:(hydrogen cation)
406:electron affinity
363:Chemical compound
361:
360:
199:CompTox Dashboard
110:Interactive image
16:(Redirected from
869:
852:Hydrogen physics
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317:Thermochemistry
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280:Chemical formula
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162:Gmelin Reference
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517:oxidation state
510:oxidation state
477:photoionization
472:photodetachment
468:alkaline earths
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341:108.96 J K mol
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38:Hydrogen anion
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670:(3): 113–145.
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499:excited states
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393:. The ion has
385:, such as the
368:hydrogen anion
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349:standard state
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306:Conjugate acid
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243:InChI=1S/H/q-1
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771:(in German).
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464:alkali metals
460:
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397:bound by the
396:
395:two electrons
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379:hydrogen atom
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857:Astrophysics
815:
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557:Hydrogen ion
514:
503:
489:
482:
475:
474:rather than
471:
449:
403:
390:
367:
365:
330:
69:Identifiers
818:(12): 643.
712:. Chicago:
521:borohydride
459:atmospheres
273:Properties
130:CHEBI:29239
18:Hydride ion
846:Categories
738:(5): 228.
563:References
492:Hans Bethe
452:bound-free
446:Occurrence
425:(62)
414:(19)
370:, H, is a
311:Dihydrogen
293:Molar mass
141:ChemSpider
97:3D model (
86:12184-88-2
76:CAS Number
797:125100200
551:Electride
324:Std molar
692:56355519
539:See also
440: eV
372:negative
820:Bibcode
777:Bibcode
740:Bibcode
672:Bibcode
625:Bibcode
623:: 611.
583:. USA:
523:anion (
506:hydride
455:opacity
436:−14.359
427:hartree
391:hydride
326:entropy
174:PubChem
62:Hydride
29:Hydride
862:Anions
795:
690:
545:Hydron
260:SMILES
187:166653
167:14911
150:145831
52:Names
793:S2CID
688:S2CID
658:(PDF)
496:bound
430:(see
421:0.027
410:0.754
383:stars
298:1.009
235:InChI
121:ChEBI
99:JSmol
512:−1.
466:and
423:7161
366:The
828:doi
785:doi
748:doi
680:doi
633:doi
535:).
487:.
438:888
419:or
412:195
387:Sun
375:ion
334:298
204:EPA
177:CID
848::
826:.
816:38
814:.
791:.
783:.
773:57
746:.
736:38
734:.
686:.
678:.
668:17
666:.
660:.
645:^
631:.
621:90
619:.
579:.
525:BH
442:.
416:eV
834:.
830::
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799:.
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682::
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530:4
336:)
331:S
329:(
286:H
206:)
202:(
101:)
31:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
