Kazimierz Fajans

Polish-American scientist
Person human Q213667
Kazimierz Fajans
NN (University of Michigan) · Public Domain · Wikimedia
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Summary

Kazimierz Fajans was born on May 27, 1887[1], in Warsaw[2]. He died on May 18, 1975[3], in Ann Arbor[4]. He worked as a physicist[5], chemist[6], and university teacher[7]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (343 views/month, #7,275 of 1,000,298).[8]

Key Facts

  • Country of citizenship: United States[9], Poland[10]
  • Field of work: physical chemistry[11]
  • Employer: University of Michigan[12], Karlsruhe Institute of Technology[13], Ludwig-Maximilians-Universität München[14]
  • Educated at: Leipzig University[15], University of Zurich[16]
  • Award received: Fellow of the American Physical Society[17]
  • Member of: Academy of Sciences of the USSR[18], Bavarian Academy of Sciences and Humanities[19], Russian Academy of Sciences[20]
  • Sex or gender: male[21]
  • Doctoral student: Oswald Helmuth Göhring[22], Zhu Jianhan[23], Theodore H. Berlin[24]
  • Commons category: Kazimierz Fajans[25]
  • Archives at: Berlin State Library[26], Bentley Historical Library[27]
  • Academic degree: professor[28]
  • Family name: Fajans[29]
  • Given name: Kazimierz[30]
  • Work location: Munich[31], Ann Arbor[32]
  • Described by source: Nordisk familjebok[33], Great Soviet Encyclopedia (1969–1978)[34], Armenian Soviet Encyclopedia[35], Great Soviet Encyclopedia (1926–1947)[36], Physicists: Biographical Dictionary[37]
  • Nominated for: Nobel Prize in Chemistry[38]
  • Languages spoken, written or signed: Polish[39]
  • Name in native language: Kazimierz Fajans[40]

Body

Works and Contributions

Things named for Kazimierz Fajans include Fajans' rules[41].

Why It Matters

Kazimierz Fajans has Wikipedia articles in 21 language editions, a strong signal of global cultural recognition.[42] He is known by 30 alternative names across languages and contexts.[43]

He is credited with the discovery of protactinium[44], a chemical element[45]. Entities named for him include Fajans' rules[41].

FAQs

Where was Kazimierz Fajans born?

Kazimierz Fajans's place of birth was Warsaw[2].

Where did Kazimierz Fajans die?

Kazimierz Fajans passed away in Ann Arbor[4].

What did Kazimierz Fajans do for work?

Kazimierz Fajans worked as a physicist[5], chemist[6], and university teacher[7].

Where did Kazimierz Fajans go to school?

Kazimierz Fajans was educated at Leipzig University[15] and University of Zurich[16].

What awards did Kazimierz Fajans receive?

Honors received include Fellow of the American Physical Society[17].

What did Kazimierz Fajans discover?

Kazimierz Fajans is credited as discoverer of protactinium[44].

References

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

Direct Wikidata claims

  1. [2] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  2. [4] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  3. [21] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  4. [9] ↑ . wikidata.org.
  5. [10] ↑ . wikidata.org.
  6. [15] ↑ . wikidata.org.
  7. [16] ↑ . Retrieved . wikidata.org.
  8. [11] ↑ . wikidata.org.
  9. [5] ↑ . wikidata.org.
  10. [6] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  11. [7] ↑ . wikidata.org.
  12. [12] ↑ . wikidata.org.
  13. [13] ↑ . wikidata.org.
  14. [14] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [22] ↑ . wikidata.org.
  17. [23] ↑ . wikidata.org.
  18. [24] ↑ . The Academic Family Tree. wikidata.org.
  19. [25] ↑ . wikidata.org.
  20. [18] ↑ . wikidata.org.
  21. [19] ↑ . wikidata.org.
  22. [20] ↑ . wikidata.org.
  23. [26] ↑ . kalliope-verbund.info. kalliope-verbund.info. Provenance: wikidata.org.
  24. [27] ↑ . kalliope-verbund.info. kalliope-verbund.info. Provenance: wikidata.org.
  25. [28] ↑ . wikidata.org.
  26. [1] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  27. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  28. [29] ↑ . wikidata.org.
  29. [30] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  30. [31] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  31. [32] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  32. [33] ↑ . wikidata.org.
  33. [34] ↑ . wikidata.org.
  34. [35] ↑ . wikidata.org.
  35. [36] ↑ . wikidata.org.
  36. [37] ↑ . wikidata.org.
  37. [38] ↑ . nobelprize.org. wikidata.org.
  38. [39] ↑ . IdRef. Retrieved . wikidata.org.
  39. [40] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [44] ↑ . wikidata.org. → on this site
  2. [41] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [45] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [8] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [42] ↑ . Wikidata sitelinks. wikidata.org.
  3. [43] ↑ . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Kazimierz Fajans. Retrieved October 20, 2026, from https://4ort.xyz/entity/kazimierz-fajans
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BibTeX @misc{4ortxyz_kazimierz-fajans_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Kazimierz Fajans}}, year = {2026}, url = {https://4ort.xyz/entity/kazimierz-fajans}, note = {Accessed: 2026-10-20}}
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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. 4d ago · OKA bot bot · 2026-10-17 view diff on Wikidata ↗
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  2. 18d ago · Printstream · 2026-10-04 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'arz', 'az', 'azb', 'ca', 'commons', 'cs', 'de', 'el', 'en', 'es', 'eu',
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  3. 14w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 3E9b41
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  4. 22w ago · Epìdosis · 2026-05-19 view diff on Wikidata ↗
    Place of birth → Warsaw
    Educated at → Leipzig University, University of Zurich
    Aliases → —
    Described by source → Nordisk familjebok, Great Soviet Encyclopedia (1969–1978), Armenian Soviet Encyclopedia +2
    + 27 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32080|batch #32080]]: import P21 and P106 from GND (22)"
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