classical electron radius

physical constant providing length scale to interatomic interactions
Thing physical_constant Q2152581
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classical electron radius

Summary

classical electron radius is a physical constant[1]. It draws 85 Wikipedia views per month (physical_constant category, ranking #22 of 43).[2]

Key Facts

  • classical electron radius's instance of is recorded as physical constant[3].
  • classical electron radius's instance of is recorded as radius[4].
  • classical electron radius's measured physical quantity is recorded as radius[5].
  • classical electron radius's Freebase ID is recorded as /m/04ws2q[6].
  • classical electron radius's numeric value is recorded as {'unit': 'Q208788', 'amount': '+2.8179403262'}[7].
  • classical electron radius's described by source is recorded as ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics[8].
  • classical electron radius's NIST/CODATA ID is recorded as re[9].
  • classical electron radius's defining formula is recorded as r_{\mathrm{e}} = \frac{e^2}{4 \pi \varepsilon_0 m_{\mathrm{e}} c_0^2}[10].
  • classical electron radius's ISQ dimension is recorded as \mathsf{L}[11].
  • classical electron radius's World of Physics ID is recorded as ElectronRadius[12].
  • classical electron radius's maintained by WikiProject is recorded as WikiProject Mathematics[13].
  • classical electron radius's Microsoft Academic ID is recorded as 86855206[14].
  • classical electron radius's Wolfram Language unit code is recorded as "ClassicalElectronRadius"[15].
  • classical electron radius's in defining formula is recorded as r_{\mathrm{e}}[16].
  • classical electron radius's in defining formula is recorded as e[17].
  • classical electron radius's in defining formula is recorded as \pi[18].
  • classical electron radius's in defining formula is recorded as \varepsilon_0[19].
  • classical electron radius's in defining formula is recorded as m_{\mathrm{e}}[20].
  • classical electron radius's in defining formula is recorded as c_0[21].
  • classical electron radius's quantity symbol is recorded as r_{\mathrm{e}}[22].
  • classical electron radius's recommended unit of measurement is recorded as metre[23].
  • classical electron radius's OpenAlex ID is recorded as C86855206[24].

Why It Matters

classical electron radius draws 85 Wikipedia views per month (physical_constant category, ranking #22 of 43).[2] It has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[25] It is known by 17 alternative names across languages and contexts.[26]

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] . Freebase Data Dumps. wikidata.org.
  5. [7] . 2018 CODATA recommended values. wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . physics.nist.gov. physics.nist.gov. Provenance: wikidata.org.
  8. [10] . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  21. [23] . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  22. [24] . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] . Wikidata sitelinks. wikidata.org.
  3. [26] . 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). classical electron radius. Retrieved May 3, 2026, from https://4ort.xyz/entity/classical-electron-radius
MLA “classical electron radius.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/classical-electron-radius.
BibTeX @misc{4ortxyz_classical-electron-radius_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{classical electron radius}}, year = {2026}, url = {https://4ort.xyz/entity/classical-electron-radius}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): classical electron radius — https://4ort.xyz/entity/classical-electron-radius (retrieved 2026-05-03)

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