> **PROTOTYPE:** a suggestion, not an official CIAAW or IUPAC page. Official values are at [ciaaw.org](https://ciaaw.org).

# xenon

| Property | Value |
| --- | --- |
| Symbol | Xe |
| Atomic number | 54 |
| IRI | `https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Xenon` |
| Wikidata | [Q1106](https://www.wikidata.org/wiki/Q1106) |

## Standard atomic weight

| Value | Year | Source | Status | Declaration |
| --- | --- | --- | --- | --- |
| 131.293(6) | 1999 | [10.1351/pac200173040667](https://doi.org/10.1351/pac200173040667) | Current | [`AW-Xe-standard`](../id/AW-Xe-standard.md) |
| 131.29(2) | 1985 | [10.1351/pac198658121677](https://doi.org/10.1351/pac198658121677) | Deprecated, see [`AW-Xe-standard`](../id/AW-Xe-standard.md) | [`AW-Xe-standard-1985`](../id/AW-Xe-standard-1985.md) |
| 131.29(3) | 1979 | [10.1351/pac198052102349](https://doi.org/10.1351/pac198052102349) | Deprecated, see [`AW-Xe-standard-1985`](../id/AW-Xe-standard-1985.md) | [`AW-Xe-standard-1979`](../id/AW-Xe-standard-1979.md) |
| 131.30(1) | 1969 | [10.1351/pac197021010091](https://doi.org/10.1351/pac197021010091) | Deprecated, see [`AW-Xe-standard-1979`](../id/AW-Xe-standard-1979.md) | [`AW-Xe-standard-1969`](../id/AW-Xe-standard-1969.md) |
| 131.30 | 1955 | [10.1021/ja01595a001](https://doi.org/10.1021/ja01595a001) | Deprecated, see [`AW-Xe-standard-1969`](../id/AW-Xe-standard-1969.md) | [`AW-Xe-standard-1955`](../id/AW-Xe-standard-1955.md) |
| 131.3 | 1932 | [10.1021/ja01343a001](https://doi.org/10.1021/ja01343a001) | Deprecated, see [`AW-Xe-standard-1955`](../id/AW-Xe-standard-1955.md) | [`AW-Xe-standard-1932`](../id/AW-Xe-standard-1932.md) |
| 130.2 | 1911 | [10.1021/ja01928a001](https://doi.org/10.1021/ja01928a001) | Deprecated, see [`AW-Xe-standard-1932`](../id/AW-Xe-standard-1932.md) | [`AW-Xe-standard-1911`](../id/AW-Xe-standard-1911.md) |
| 130.7 | 1910 | [10.1021/ja01919a001](https://doi.org/10.1021/ja01919a001) | Deprecated, see [`AW-Xe-standard-1911`](../id/AW-Xe-standard-1911.md) | [`AW-Xe-standard-1910`](../id/AW-Xe-standard-1910.md) |
| 128 | 1909 | [10.1021/ja01931a001](https://doi.org/10.1021/ja01931a001) | Deprecated, see [`AW-Xe-standard-1910`](../id/AW-Xe-standard-1910.md) | [`AW-Xe-standard-1909`](../id/AW-Xe-standard-1909.md) |
| 128 | 1902 | [10.1007/BF01370337](https://doi.org/10.1007/BF01370337) | Deprecated, see [`AW-Xe-standard-1909`](../id/AW-Xe-standard-1909.md) | [`AW-Xe-standard-1902`](../id/AW-Xe-standard-1902.md) |

Notes: [g](#note-g) [m](#note-m)

## Isotopes

| A | Representative isotopic composition | Year | Source | Declaration | ChEBI | Wikidata |
| --- | --- | --- | --- | --- | --- | --- |
| [124](../id/Xe-124.md) | 0.000 95(5) | — | — | [`Abundance-Xe124`](../id/Abundance-Xe124.md) | — | [Q3268486](https://www.wikidata.org/wiki/Q3268486) |
| [126](../id/Xe-126.md) | 0.000 89(3) | — | — | [`Abundance-Xe126`](../id/Abundance-Xe126.md) | — | [Q3134801](https://www.wikidata.org/wiki/Q3134801) |
| [128](../id/Xe-128.md) | 0.019 10(13) | — | — | [`Abundance-Xe128`](../id/Abundance-Xe128.md) | — | [Q1953543](https://www.wikidata.org/wiki/Q1953543) |
| [129](../id/Xe-129.md) | 0.264 01(138) | — | — | [`Abundance-Xe129`](../id/Abundance-Xe129.md) | — | [Q2388818](https://www.wikidata.org/wiki/Q2388818) |
| [130](../id/Xe-130.md) | 0.040 71(22) | — | — | [`Abundance-Xe130`](../id/Abundance-Xe130.md) | — | [Q2622312](https://www.wikidata.org/wiki/Q2622312) |
| [131](../id/Xe-131.md) | 0.212 32(51) | — | — | [`Abundance-Xe131`](../id/Abundance-Xe131.md) | — | [Q2501965](https://www.wikidata.org/wiki/Q2501965) |
| [132](../id/Xe-132.md) | 0.269 09(55) | — | — | [`Abundance-Xe132`](../id/Abundance-Xe132.md) | — | [Q2125594](https://www.wikidata.org/wiki/Q2125594) |
| [134](../id/Xe-134.md) | 0.104 36(35) | — | — | [`Abundance-Xe134`](../id/Abundance-Xe134.md) | — | [Q3459792](https://www.wikidata.org/wiki/Q3459792) |
| [136](../id/Xe-136.md) | 0.088 57(72) | — | — | [`Abundance-Xe136`](../id/Abundance-Xe136.md) | — | [Q1851814](https://www.wikidata.org/wiki/Q1851814) |

Notes: [g](#note-g) [m](#note-m)

## Notes

<a id="note-g"></a>**g** Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty.

<a id="note-m"></a>**m** Modified isotopic compositions may be found in commercially available material because the material has been subjected to some undisclosed or inadvertent isotopic fractionation. Substantial deviations in atomic weight of the element from that given in the table can occur.

## Bibliography

<div class="csl-bib-body">
<div class="csl-entry">Atomic weights of the elements 1969. (1970). <i>Pure and Applied Chemistry</i>, <i>21</i>(1), 91–108. https://doi.org/10.1351/pac197021010091 <a href="https://doi.org/10.1351/pac197021010091">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac197021010091">Scholia</a></div>
<div class="csl-entry">Atomic Weights of the Elements 1979. (1980). <i>Pure and Applied Chemistry</i>, <i>52</i>(10), 2349–2384. https://doi.org/10.1351/pac198052102349 <a href="https://doi.org/10.1351/pac198052102349">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac198052102349">Scholia</a></div>
<div class="csl-entry">Atomic weights of the elements 1985. (1986). <i>Pure and Applied Chemistry</i>, <i>58</i>(12), 1677–1692. https://doi.org/10.1351/pac198658121677 <a href="https://doi.org/10.1351/pac198658121677">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac198658121677">Scholia</a></div>
<div class="csl-entry">Baxter, G. P., Chairman, Curie, Mme. M., Hönigschmid, O., Beau, P. L., &#38; Meyer, R. J. (1932). SECOND REPORT OF THE COMMITTEE ON ATOMIC WEIGHTS OF THE INTERNATIONAL UNION OF CHEMISTRY. <i>Journal of the American Chemical Society</i>, <i>54</i>(4), 1269–1279. https://doi.org/10.1021/ja01343a001 <a href="https://doi.org/10.1021/ja01343a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja01343a001">Scholia</a></div>
<div class="csl-entry">Clarke, F. W., Ostwald, W., Thorpe, T. E., &#38; Urbain, G. (1909). REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS. 1909. <i>Journal of the American Chemical Society</i>, <i>31</i>(1), 1–6. https://doi.org/10.1021/ja01931a001 <a href="https://doi.org/10.1021/ja01931a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja01931a001">Scholia</a></div>
<div class="csl-entry">Clarke, F. W., Thorpe, T. E., Ostwald, W., &#38; Urbain, G. (1910). ANNUAL REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS, 1911. <i>Journal of the American Chemical Society</i>, <i>32</i>(10), 1113–1116. https://doi.org/10.1021/ja01928a001 <a href="https://doi.org/10.1021/ja01928a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja01928a001">Scholia</a></div>
<div class="csl-entry">Clarke, F. W., Thorpe, T. E., Ostwald, W., &#38; Urbain, G. (1910). REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS, 1910. <i>Journal of the American Chemical Society</i>, <i>32</i>(1), 1–4. https://doi.org/10.1021/ja01919a001 <a href="https://doi.org/10.1021/ja01919a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja01919a001">Scholia</a></div>
<div class="csl-entry">Coplen, T. B. (2001). Atomic weights of the elements 1999 (IUPAC Technical Report). <i>Pure and Applied Chemistry</i>, <i>73</i>(4), 667–683. https://doi.org/10.1351/pac200173040667 <a href="https://doi.org/10.1351/pac200173040667">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac200173040667">Scholia</a></div>
<div class="csl-entry">Richards, Baxter, Hinrichsen, Köthner, P., &#38; Pellini, S. (1902). Zur Festsetzung der Atomgewichte. <i>Fresenius’ Zeitschrift für analytische Chemie</i>, <i>41</i>(2), 139–140. https://doi.org/10.1007/bf01370337 <a href="https://doi.org/10.1007/BF01370337">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1007/BF01370337">Scholia</a></div>
<div class="csl-entry">Wichers, E. (1956). Report on Atomic Weights for 1954-55. <i>Journal of the American Chemical Society</i>, <i>78</i>(14), 3235–3240. https://doi.org/10.1021/ja01595a001 <a href="https://doi.org/10.1021/ja01595a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja01595a001">Scholia</a></div>
</div>

## Turtle

This resource as a file: [Xenon.ttl](Xenon.ttl)

```turtle
# Prototype: a suggestion, not an official CIAAW or IUPAC record. Official values are at https://ciaaw.org

@prefix adms: <http://www.w3.org/ns/adms#> .
@prefix chemrof: <https://w3id.org/chemrof/> .
@prefix ciaaw: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/ciaaw-draft#> .
@prefix ciaaw_draft: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/id/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix element: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix unit: <http://qudt.org/vocab/unit/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ciaaw:note-g a ciaaw:Footnote ;
    skos:definition "Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty."@en ;
    skos:notation "g" .

ciaaw:note-m a ciaaw:Footnote ;
    skos:definition "Modified isotopic compositions may be found in commercially available material because the material has been subjected to some undisclosed or inadvertent isotopic fractionation. Substantial deviations in atomic weight of the element from that given in the table can occur."@en ;
    skos:notation "m" .

ciaaw_draft:AW-Xe-standard-1902 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1909 ;
    dcterms:issued "1902"^^xsd:gYear ;
    dcterms:source <https://doi.org/10.1007/BF01370337> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 128.0 ] .

ciaaw_draft:AW-Xe-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "1999"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1985 ;
    dcterms:source <https://doi.org/10.1351/pac200173040667> ;
    ciaaw:footnote ciaaw:note-g,
        ciaaw:note-m ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 131.293 ;
            qudt:standardUncertainty 0.006 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Xe-standard-1909 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1910 ;
    dcterms:issued "1909"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1902 ;
    dcterms:source <https://doi.org/10.1021/ja01931a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 128.0 ] .

ciaaw_draft:AW-Xe-standard-1910 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1911 ;
    dcterms:issued "1910"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1909 ;
    dcterms:source <https://doi.org/10.1021/ja01919a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 130.7 ] .

ciaaw_draft:AW-Xe-standard-1911 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1932 ;
    dcterms:issued "1911"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1910 ;
    dcterms:source <https://doi.org/10.1021/ja01928a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 130.2 ] .

ciaaw_draft:AW-Xe-standard-1932 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1955 ;
    dcterms:issued "1932"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1911 ;
    dcterms:source <https://doi.org/10.1021/ja01343a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 131.3 ] .

ciaaw_draft:AW-Xe-standard-1955 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1969 ;
    dcterms:issued "1955"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1932 ;
    dcterms:source <https://doi.org/10.1021/ja01595a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 131.30 ] .

ciaaw_draft:AW-Xe-standard-1969 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1979 ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1955 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 131.30 ;
            qudt:standardUncertainty 0.01 ;
            ciaaw:significantFigures 5 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Xe-standard-1979 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard-1985 ;
    dcterms:issued "1979"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1969 ;
    dcterms:source <https://doi.org/10.1351/pac198052102349> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 131.29 ;
            qudt:standardUncertainty 0.03 ;
            ciaaw:significantFigures 5 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Xe-standard-1985 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Xe-standard ;
    dcterms:issued "1985"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Xe-standard-1979 ;
    dcterms:source <https://doi.org/10.1351/pac198658121677> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Xenon ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 131.29 ;
            qudt:standardUncertainty 0.02 ;
            ciaaw:significantFigures 5 ;
            ciaaw:significantFiguresUncertainty 1 ] .

element:Xenon a chemrof:ChemicalElement ;
    rdfs:label "xenon"@en ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-Xe-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-Xe-standard,
        ciaaw_draft:AW-Xe-standard-1902,
        ciaaw_draft:AW-Xe-standard-1909,
        ciaaw_draft:AW-Xe-standard-1910,
        ciaaw_draft:AW-Xe-standard-1911,
        ciaaw_draft:AW-Xe-standard-1932,
        ciaaw_draft:AW-Xe-standard-1955,
        ciaaw_draft:AW-Xe-standard-1969,
        ciaaw_draft:AW-Xe-standard-1979,
        ciaaw_draft:AW-Xe-standard-1985 ;
    ciaaw:hasIsotope ciaaw_draft:Xe-124,
        ciaaw_draft:Xe-126,
        ciaaw_draft:Xe-128,
        ciaaw_draft:Xe-129,
        ciaaw_draft:Xe-130,
        ciaaw_draft:Xe-131,
        ciaaw_draft:Xe-132,
        ciaaw_draft:Xe-134,
        ciaaw_draft:Xe-136 ;
    ciaaw:standardAtomicWeightUncertainty 0.006 ;
    ciaaw:standardAtomicWeightValue 131.293 ;
    chemrof:atomic_number 54 ;
    chemrof:symbol "Xe" .
```

[All atomic weights](../atomic-weights.md) · [All isotopic abundances](../isotopic-abundances.md)