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period

row in the periodic table: repetition of properties in chemical elements when ordered by atomic number:
Thing general Q101843
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Summary

period ranks in the top 2% of general entities by monthly Wikipedia readership (2,260 views/month).[1]

Key Facts

  • Subclass of: class[2]
  • Part of: periodic table[3]
  • Topic's main category: Category:Periods (periodic table)[4]
  • Topic has template: Template:Periodic table (micro)[5]
  • Name in kana: げんそのしゅうき[6]
  • Different from: group[7]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[8]
  • Is metaclass for: chemical element[9]

Body

Influence

Things named for period include periodic table[10], a chemical classification[11], founded in 1869[12].

Why It Matters

period has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[13] period is known by 68 alternative names across languages and contexts.[14]

Entities named for period include periodic table[10], a chemical classification[11], founded in 1869[12].

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] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [10] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [11] ↑ . Wikidata. wikidata.org. → on this site
  2. [12] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] ↑ . Wikidata sitelinks. wikidata.org.
  3. [14] ↑ . 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). period. Retrieved October 16, 2026, from https://4ort.xyz/entity/period-q101843-2
MLA “period.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/period-q101843-2.
BibTeX @misc{4ortxyz_period-q101843-2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{period}}, year = {2026}, url = {https://4ort.xyz/entity/period-q101843-2}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): period — https://4ort.xyz/entity/period-q101843-2 (retrieved 2026-10-16)

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