americium

chemical element with symbol Am and atomic number 95
Thing chemical_element Q1872
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americium

Summary

americium is a chemical element[1]. americium draws 58 Wikipedia views per month (chemical_element category, ranking #77 of 144).[2]

Key Facts

  • americium is credited with the discovery of Glenn T. Seaborg[3].
  • americium's instance of is recorded as chemical element[4].
  • Americas is named after americium[5].
  • americium's canonical SMILES is recorded as [Am][6].
  • americium's element symbol is recorded as Am[7].
  • americium's chemical formula is recorded as Am[8].
  • americium is a type of actinide[9].
  • americium is a type of heavy metal[10].
  • americium is a type of f-block[11].
  • americium is part of period 7[12].
  • americium is part of actinide[13].
  • americium's Commons category is recorded as Americium[14].
  • americium's Unicode character is recorded as 鋂[15].
  • americium's crystal system is recorded as hexagonal crystal system[16].
  • americium's time of discovery or invention is recorded as 1944[17].
  • americium's IPA transcription is recorded as ˌæməˈrɪsiəm[18].
  • americium's topic's main category is recorded as Category:Americium[19].
  • americium's Commons gallery is recorded as Americium[20].
  • americium's atomic number is recorded as {'amount': '+95'}[21].
  • americium's electronegativity is recorded as {'amount': '+1.13'}[22].
  • americium's oxidation state is recorded as {'amount': '+2'}[23].
  • americium's oxidation state is recorded as {'amount': '+3'}[24].
  • americium's oxidation state is recorded as {'amount': '+4'}[25].
  • americium's oxidation state is recorded as {'amount': '+5'}[26].
  • americium's oxidation state is recorded as {'amount': '+6'}[27].

Body

Definition and Type

americium's instance of is recorded as chemical element[4]. Recorded subclass of include actinide[9], heavy metal[10], and f-block[11].

Origins

Americas is named after americium[5].

Use and Application

Part of include period 7[12], a period[28] and actinide[13], a chemical series[29].

Why It Matters

americium draws 58 Wikipedia views per month (chemical_element category, ranking #77 of 144).[2] americium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[30] americium is known by 44 alternative names across languages and contexts.[31]

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . PubChem. Retrieved . wikidata.org.
  5. [7] ↑ . Atomic weights of the elements 2009 (IUPAC Technical Report). wikidata.org.
  6. [8] ↑ . PubChem. Retrieved . 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] ↑ . cns11643.gov.tw. Retrieved . cns11643.gov.tw. Provenance: 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). americium. Retrieved October 3, 2026, from https://4ort.xyz/entity/americium
MLA “americium.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Oct. 2026, https://4ort.xyz/entity/americium.
BibTeX @misc{4ortxyz_americium_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{americium}}, year = {2026}, url = {https://4ort.xyz/entity/americium}, note = {Accessed: 2026-10-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): americium — https://4ort.xyz/entity/americium (retrieved 2026-10-03)

Canonical URL: https://4ort.xyz/entity/americium · 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. 12h ago · R1F4T · 2026-10-03 view diff on Wikidata ↗
    P14936 → {'unit': 'Q192274', 'amount': '+175'}
    Wikipedia languages → ['af', 'am', 'anp', 'ar', 'ary', 'arz', 'ast', 'az', 'ban', 'be', 'be_x_old', 'b
    P14937 → {'unit': 'Q192274', 'amount': '+180'}
    Claims rich → —
    "/* wbsetclaim-create:2||1 */ [[Property:P14936]]: 175 picometre, Add sourced P14936 element radius"
  2. 14d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Oxidation state → {'amount': '+2'}, {'amount': '+3'}, {'amount': '+4'} +3
    Crystal system → hexagonal crystal system
    "/* wbsetclaim-create:2||1 */ [[Property:P556]]: [[Q663314]], add crystal system from en:Template:Infobox element"
  3. 14d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Oxidation state → {'amount': '+2'}, {'amount': '+3'}, {'amount': '+4'} +3
    "/* wbsetclaim-create:2||1 */ [[Property:P1121]]: 2, add oxidation state from en:Template:Infobox element/symbol-to-oxidation-state"
  4. 14d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Ipa transcription → ˌæməˈrɪsiəm
    "/* wbsetclaim-create:2||1 */ [[Property:P898]]: ˌæməˈrɪsiəm, add IPA transcription (from en:Template:Infobox element/symbol-to-pronunciation)"
  5. 14d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Pronunciation audio → LL-Q150 (fra)-Guilhelma-américium.wav, LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-ame
    "/* wbsetclaim-create:2||1 */ [[Property:P443]]: LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-americium.wav, add English pronunciation audio (Lingua Libre, from en:Template:Infobox element/"
  6. 14d ago · R1F4T · 2026-09-19 view diff on Wikidata ↗
    Electron configuration → [Rn] 7s² 5f⁷
    "/* wbsetclaim-create:2||1 */ [[Property:P8000]]: [Rn] 7s² 5f⁷, add electron configuration from NIST ASD ground levels"
  7. 15d 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)"
  8. 15d ago · R1F4T · 2026-09-18 view diff on Wikidata ↗
    Ionization energy → {'unit': 'Q83327', 'amount': '+5.97381'}
    "/* wbsetclaim-create:1||1 */ [[Property:P2260]]: 5.97381±0.00025 electronvolt, import ionization energy from NIST Atomic Spectra Database"
  9. 28d ago · Baum64 · 2026-09-05 view diff on Wikidata ↗
    Has characteristic → paramagnetism
    Subclass of → actinide, heavy metal, f-block
    "/* wbcreateclaim-create:1| */ [[Property:P1552]]: [[Q188479]], [[:toollabs:quickstatements/#/batch/270882|batch #270882]]"
  10. 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]]"
  11. 5w ago · Mahirtwofivesix · 2026-08-26 view diff on Wikidata ↗
    Interlingual index id → i113892
    Arabic ontology lexical concept id → 151078421
    "/* wbeditentity-statements-multiple-properties-update:0||3 */ added/modified IDs mapped to WordNet 3.1"
  12. 6w ago · Baum64 · 2026-08-16 view diff on Wikidata ↗
    Electrical conductivity → {'unit': 'Q80842107', 'amount': '+147.1'}
    Melting point → {'unit': 'Q11579', 'amount': '+1449.0'}
    Specific heat capacity → {'unit': 'Q3085309', 'amount': '+0.11'}
    Thermal conductivity → {'unit': 'Q1463969', 'amount': '+10.0'}
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P9824]]: 9008461, [[:toollabs:quickstatements/#/batch/269026|batch #269026]]"
  13. 12w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 1gVeDs
    Hrvatska enciklopedija id → americij
    "/* 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.