berkelium

chemical element with symbol Bk and atomic number 97
Thing chemical_element Q1882
berkelium
Oak Ridge National Laboratory, US Department of Energy · Public Domain · Wikimedia
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berkelium

Summary

berkelium is a chemical element[1]. berkelium draws 7,623 Wikipedia views per month (chemical_element category, ranking #98 of 144).[2]

Key Facts

  • berkelium is credited with the discovery of Glenn T. Seaborg[3].
  • berkelium is credited with the discovery of Albert Ghiorso[4].
  • berkelium is credited with the discovery of Stanley Gerald Thompson[5].
  • berkelium's instance of is recorded as chemical element[6].
  • berkelium's instance of is recorded as synthetic element[7].
  • Berkeley is named after berkelium[8].
  • berkelium's location of discovery is recorded as University of California, Berkeley[9].
  • berkelium's canonical SMILES is recorded as [Bk][10].
  • berkelium's element symbol is recorded as Bk[11].
  • berkelium's chemical formula is recorded as Bk[12].
  • berkelium is a type of actinide[13].
  • berkelium is a type of heavy metal[14].
  • berkelium is a type of f-block[15].
  • berkelium is part of period 7[16].
  • berkelium is part of actinide[17].
  • berkelium's Commons category is recorded as Berkelium[18].
  • berkelium's Unicode character is recorded as 鉳[19].
  • berkelium's crystal system is recorded as hexagonal crystal system[20].
  • berkelium's time of discovery or invention is recorded as January 1, 1949[21].
  • berkelium's IPA transcription is recorded as bərˈkiːliəm[22].
  • berkelium's IPA transcription is recorded as ˈbɜːrkliəm[23].
  • berkelium's topic's main category is recorded as Category:Berkelium[24].
  • berkelium's Commons gallery is recorded as Berkelium[25].
  • berkelium's atomic number is recorded as {'amount': '+97'}[26].
  • berkelium's electronegativity is recorded as {'amount': '+1.3'}[27].

Body

Definition and Type

Recorded instance of include chemical element[6] and synthetic element[7]. Recorded subclass of include actinide[13], heavy metal[14], and f-block[15].

Origins

Berkeley is named after berkelium[8].

Use and Application

Part of include period 7[16], a period[28] and actinide[17], a chemical series[29].

Why It Matters

berkelium draws 7,623 Wikipedia views per month (chemical_element category, ranking #98 of 144).[2] berkelium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[30] berkelium is known by 43 alternative names across languages and contexts.[31]

References

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

Direct Wikidata claims

  1. [6] ↑ . wikidata.org.
  2. [7] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . 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] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site
  2. [29] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [30] ↑ . Wikidata sitelinks. wikidata.org.
  3. [31] ↑ . 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). berkelium. Retrieved October 3, 2026, from https://4ort.xyz/entity/berkelium
MLA “berkelium.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Oct. 2026, https://4ort.xyz/entity/berkelium.
BibTeX @misc{4ortxyz_berkelium_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{berkelium}}, year = {2026}, url = {https://4ort.xyz/entity/berkelium}, note = {Accessed: 2026-10-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): berkelium — https://4ort.xyz/entity/berkelium (retrieved 2026-10-03)

Canonical URL: https://4ort.xyz/entity/berkelium · 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. 15d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Oxidation state → {'amount': '+2'}, {'amount': '+3'}, {'amount': '+4'} +1
    Mass → {'amount': '+247.0703073'}
    "/* wbsetclaim-create:2||1 */ [[Property:P2067]]: 247.0703073±0.0000059 dalton, add the mass of the longest-lived isotope (AME via NIST)"
  2. 15d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Oxidation state → {'amount': '+2'}, {'amount': '+3'}, {'amount': '+4'} +1
    "/* wbsetclaim-create:2||1 */ [[Property:P1121]]: 2, add oxidation state from en:Template:Infobox element/symbol-to-oxidation-state"
  3. 16d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Ipa transcription → bərˈkiːliəm, ˈbɜːrkliəm
    "/* wbsetclaim-create:2||1 */ [[Property:P898]]: bərˈkiːliəm, add IPA transcription (from en:Template:Infobox element/symbol-to-pronunciation)"
  4. 16d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Pronunciation audio → LL-Q150 (fra)-Guilhelma-berkélium.wav, LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-ber, LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-ber
    "/* wbsetclaim-create:2||1 */ [[Property:P443]]: LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-berkelium.wav, add English pronunciation audio (Lingua Libre, from en:Template:Infobox element/"
  5. 16d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Electron configuration → [Rn] 7s² 5f⁹
    "/* wbsetclaim-create:2||1 */ [[Property:P8000]]: [Rn] 7s² 5f⁹, add electron configuration from NIST ASD ground levels"
  6. 16d ago · R1F4T · 2026-09-18 view diff on Wikidata ↗
    Subclass of → actinide, heavy metal, f-block
    "/* wbsetclaim-create:2||1 */ [[Property:P279]]: [[Q214680]], add periodic table block (IUPAC 2021 convention)"
  7. 16d ago · R1F4T · 2026-09-18 view diff on Wikidata ↗
    Ionization energy → {'amount': '+6.19785'}
    Subclass of → actinide, heavy metal, f-block
    "/* wbsetclaim-create:1||1 */ [[Property:P2260]]: 6.19785±0.00025 electronvolt, import ionization energy from NIST Atomic Spectra Database"
  8. 5w ago · Baum64 · 2026-08-29 view diff on Wikidata ↗
    Subclass of → actinide, heavy metal, f-block
    "/* wbcreateclaim-create:1| */ [[Property:P279]]: [[Q19577]], [[:toollabs:quickstatements/#/batch/269656|batch #269656]]"
  9. 5w ago · Mahirtwofivesix · 2026-08-26 view diff on Wikidata ↗
    Interlingual index id → i113904
    Arabic ontology lexical concept id → 151078433
    "/* wbeditentity-statements-multiple-properties-update:0||3 */ added/modified IDs mapped to WordNet 3.1"
  10. 7w ago · Baum64 · 2026-08-16 view diff on Wikidata ↗
    Melting point → {'amount': '+1323.0'}
    Crystal system → hexagonal crystal system
    Thermal conductivity → {'amount': '+10.0'}
    Density → {'amount': '+14780.0'}
    "/* wbcreateclaim-create:1| */ [[Property:P2101]]: 1,323.0 kelvin, [[:toollabs:quickstatements/#/batch/269026|batch #269026]]"
  11. 12w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 1aBzSQ
    Hrvatska enciklopedija id → berkelij
    Local thumb → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.