triatomic hydrogen

unstable allotrope of hydrogen
ChemicalSubstance type_of_chemical_entity Q5645461
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triatomic hydrogen

Summary

triatomic hydrogen is a type of chemical entity[1]. It ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (55 views/month).[2]

Key Facts

  • triatomic hydrogen's instance of is recorded as type of chemical entity[3].
  • triatomic hydrogen's chemical structure is recorded as Trihydrogen.png[4].
  • triatomic hydrogen's CAS Registry Number is recorded as 12184-91-7[5].
  • triatomic hydrogen's canonical SMILES is recorded as [H]1[H][H]1[6].
  • triatomic hydrogen's InChI is recorded as InChI=1S/H3/c1-2-3-1[7].
  • triatomic hydrogen's InChIKey is recorded as FVJJEQURJXHDEY-UHFFFAOYSA-N[8].
  • triatomic hydrogen's chemical formula is recorded as H₃[9].
  • triatomic hydrogen's subclass of is recorded as chemical compound[10].
  • triatomic hydrogen's Freebase ID is recorded as /m/09gqlxm[11].
  • triatomic hydrogen's mass is recorded as {'unit': 'Q483261', 'amount': '+3.0238'}[12].
  • triatomic hydrogen's DSSTox substance ID is recorded as DTXSID101319229[13].
  • triatomic hydrogen's Microsoft Academic ID is recorded as 2778317135[14].

Why It Matters

triatomic hydrogen ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (55 views/month).[2] It has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[15] It is known by 3 alternative names across languages and contexts.[16]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . Freebase Data Dumps. wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [15] . Wikidata sitelinks. wikidata.org.
  3. [16] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). triatomic hydrogen. Retrieved May 3, 2026, from https://4ort.xyz/entity/triatomic-hydrogen
MLA “triatomic hydrogen.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/triatomic-hydrogen.
BibTeX @misc{4ortxyz_triatomic-hydrogen_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{triatomic hydrogen}}, year = {2026}, url = {https://4ort.xyz/entity/triatomic-hydrogen}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): triatomic hydrogen — https://4ort.xyz/entity/triatomic-hydrogen (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/triatomic-hydrogen · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 19d ago · Shuaib-bot bot · 2026-05-02 view diff on Wikidata ↗
    Instance of
    Aliases
    Instance of type of chemical entity
    Mass {'unit': 'Q483261', 'amount': '+3.0238'}
    + 2 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-and-other-short:0||ur */"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.