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mass excess

difference between mass and mass number of a nuclide
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Summary

mass excess ranks in the top 2% of general entities by monthly Wikipedia readership (221 views/month).[1]

Key Facts

  • Subclass of: difference[2], physical quantity[3], mass[4]
  • Described by source: ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics[5]
  • Main Wikidata property: P2160[6]
  • Different from: mass defect[7]
  • Maintained by WikiProject: WikiProject Mathematics[8]
  • Recommended unit of measurement: kilogram[9], dalton[10]
  • P14541: 2wqoAM[11]

Why It Matters

mass excess has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[12] It is known by 21 alternative names across languages and contexts.[13]

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] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  9. [10] ↑ . ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics. wikidata.org.
  10. [11] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [12] ↑ . Wikidata sitelinks. wikidata.org.
  3. [13] ↑ . 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). mass excess. Retrieved October 16, 2026, from https://4ort.xyz/entity/mass-excess
MLA “mass excess.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/mass-excess.
BibTeX @misc{4ortxyz_mass-excess_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{mass excess}}, year = {2026}, url = {https://4ort.xyz/entity/mass-excess}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): mass excess — https://4ort.xyz/entity/mass-excess (retrieved 2026-10-16)

Canonical URL: https://4ort.xyz/entity/mass-excess · 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. 1d ago · Kokage si · 2026-10-16 view diff on Wikidata ↗
    Wikipedia languages → ['af', 'ar', 'be', 'de', 'en', 'es', 'fi', 'fr', 'hy', 'id', 'nl', 'no', 'ro', '
    Sitelink count → 18
    Claims rich → —
    "/* wbeditentity-update-languages-short:0||zh-hans, zh-hant, zh-hk, ja, zh */ LabelLister V3 (beta) - : label(del[zh-hans, zh-hant, zh-hk], edit[ja(0), zh(0)]), alias(zh[-1])"
  2. 5w ago · عُثمان · 2026-09-10 view diff on Wikidata ↗
    Wurvoc.org measure id → Mass_excess
    "/* wbsetclaim-create:1||1 */ Wurvoc.org measure id: Mass_excess, Matched to [[:toollabs:mix-n-match/#/entry/14008443|mass excess (#14008443)]] in [[:toollabs:mix-n-match/#/catalog/281|Wurvoc.org units"
  3. 14w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 2wqoAM
    Recommended unit of measurement → kilogram, dalton
    Described by source → ISO 80000-10:2019 Quantities and units — Part 10: Atomic and nuclear physics
    Main wikidata property → P2160
    + 5 other properties edited (see Wikidata diff for full list)
    "/* 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.