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actinium-228

isotope of actinium
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actinium-228

Summary

actinium-228 is an isotope of actinium[1].

Key Facts

  • actinium-228's instance of is recorded as isotope of actinium[2].
  • actinium-228 is a type of actinium[3].
  • actinium-228's decays to is recorded as francium-224[4].
  • actinium-228's decays to is recorded as thorium-228[5].
  • actinium-228's atomic number is recorded as {'unit': '1', 'amount': '+89'}[6].
  • actinium-228's spin quantum number is recorded as {'unit': '1', 'amount': '+3.0'}[7].
  • actinium-228's parity quantum number is recorded as {'unit': '1', 'amount': '+1'}[8].
  • actinium-228's neutron number is recorded as {'unit': '1', 'amount': '+139'}[9].
  • actinium-228's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q483261', 'amount': '+228.031019767'}[10].
  • actinium-228's half-life is recorded as {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+6.15'}[11].
  • actinium-228's binding energy is recorded as {'unit': 'http://www.wikidata.org/entity/Q28719934', 'amount': '+1741736.688'}[12].
  • actinium-228's mass excess is recorded as {'unit': 'http://www.wikidata.org/entity/Q28719934', 'amount': '+28894.728'}[13].

Body

Definition and Type

actinium-228's instance of is recorded as isotope of actinium[2]. actinium-228 is a type of actinium[3].

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . NuDat. Retrieved . nndc.bnl.gov. Provenance: wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . NuDat. Retrieved . nndc.bnl.gov. Provenance: wikidata.org.
  7. [8] ↑ . NuDat. Retrieved . nndc.bnl.gov. Provenance: wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures. Retrieved . amdc.in2p3.fr. Provenance: wikidata.org.
  10. [11] ↑ . NuDat. Retrieved . nndc.bnl.gov. Provenance: wikidata.org.
  11. [12] ↑ . The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures. Retrieved . amdc.in2p3.fr. Provenance: wikidata.org.
  12. [13] ↑ . The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures. Retrieved . amdc.in2p3.fr. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). actinium-228. Retrieved May 3, 2026, from https://4ort.xyz/entity/actinium-228
MLA “actinium-228.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/actinium-228.
BibTeX @misc{4ortxyz_actinium-228_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{actinium-228}}, year = {2026}, url = {https://4ort.xyz/entity/actinium-228}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): actinium-228 — https://4ort.xyz/entity/actinium-228 (retrieved 2026-05-03)

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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. 8d ago · InternetArchiveBot bot · 2026-07-01 view diff on Wikidata ↗
    Spin quantum number → {'unit': '1', 'amount': '+3.0'}
    Half-life → {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount':
    Neutron number → {'unit': '1', 'amount': '+139'}
    Google knowledge graph id → /g/121h3jqd
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-multiple-properties-update:0||3 */ Rescuing 3 sources and submitting 0 for archiving. #IABot (v2.0.9.5)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.