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

# vanadium

| Property | Value |
| --- | --- |
| Symbol | V |
| Atomic number | 23 |
| IRI | `https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Vanadium` |
| Wikidata | [Q722](https://www.wikidata.org/wiki/Q722) |

## Standard atomic weight

| Value | Year | Source | Status | Declaration |
| --- | --- | --- | --- | --- |
| 50.9415(1) | 1977 | [10.1351/pac197951020405](https://doi.org/10.1351/pac197951020405) | Current | [`AW-V-standard`](../id/AW-V-standard.md) |
| 50.9414(3) | 1969 | [10.1351/pac197021010091](https://doi.org/10.1351/pac197021010091) | Deprecated, see [`AW-V-standard`](../id/AW-V-standard.md) | [`AW-V-standard-1969`](../id/AW-V-standard-1969.md) |
| 50.942 | 1961 | [10.1021/ja00881a001](https://doi.org/10.1021/ja00881a001) | Deprecated, see [`AW-V-standard-1969`](../id/AW-V-standard-1969.md) | [`AW-V-standard-1961`](../id/AW-V-standard-1961.md) |
| 50.95 | 1931 | [10.1039/JR9310001617](https://doi.org/10.1039/JR9310001617) | Deprecated, see [`AW-V-standard-1961`](../id/AW-V-standard-1961.md) | [`AW-V-standard-1931`](../id/AW-V-standard-1931.md) |
| 50.96 | 1925 | [10.1039/CT9252700913](https://doi.org/10.1039/CT9252700913) | Deprecated, see [`AW-V-standard-1931`](../id/AW-V-standard-1931.md) | [`AW-V-standard-1925`](../id/AW-V-standard-1925.md) |
| 51 | 1912 | [10.1021/ja02224a601](https://doi.org/10.1021/ja02224a601) | Deprecated, see [`AW-V-standard-1925`](../id/AW-V-standard-1925.md) | [`AW-V-standard-1912`](../id/AW-V-standard-1912.md) |
| 51.06 | 1911 | [10.1021/ja01928a001](https://doi.org/10.1021/ja01928a001) | Deprecated, see [`AW-V-standard-1912`](../id/AW-V-standard-1912.md) | [`AW-V-standard-1911`](../id/AW-V-standard-1911.md) |
| 51.2 | 1902 | [10.1007/BF01370337](https://doi.org/10.1007/BF01370337) | Deprecated, see [`AW-V-standard-1911`](../id/AW-V-standard-1911.md) | [`AW-V-standard-1902`](../id/AW-V-standard-1902.md) |


## Isotopes

| A | Representative isotopic composition | Year | Source | Declaration | ChEBI | Wikidata |
| --- | --- | --- | --- | --- | --- | --- |
| [50](../id/V-50.md) | 0.002 50(10) | — | — | [`Abundance-V50`](../id/Abundance-V50.md) | — | [Q4504994](https://www.wikidata.org/wiki/Q4504994) |
| [51](../id/V-51.md) | 0.997 50(10) | — | — | [`Abundance-V51`](../id/Abundance-V51.md) | — | [Q1931262](https://www.wikidata.org/wiki/Q1931262) |

## Bibliography

<div class="csl-bib-body">
<div class="csl-entry">Aston, F. W., Baxter, G. P., Brauner, B., Debierne, A., Leduc, A., Richards, T. W., Soddy, F., &#38; Urbain, G. (1925). Second Report of the International Committee of the International Union of Pure and Applied Chemistry on the chemical elements. International atomic weights, 1925. <i>Journal of the Chemical Society, Transactions</i>, <i>127</i>, 913. https://doi.org/10.1039/ct9252700913 <a href="https://doi.org/10.1039/CT9252700913">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1039/CT9252700913">Scholia</a></div>
<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 1977. (1979). <i>Pure and Applied Chemistry</i>, <i>51</i>(2), 405–434. https://doi.org/10.1351/pac197951020405 <a href="https://doi.org/10.1351/pac197951020405">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1351/pac197951020405">Scholia</a></div>
<div class="csl-entry">Baxter, G. P., Curie, Mme. M., Hönigschmid, O., Lebeau, P., &#38; Meyer, R. J. (1931). First Report of the Committee on the Atomic Weights of the International Union of Chemistry. <i>J. Chem. Soc.</i>, <i>0</i>(0), 1617–1627. https://doi.org/10.1039/jr9310001617 <a href="https://doi.org/10.1039/JR9310001617">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1039/JR9310001617">Scholia</a></div>
<div class="csl-entry">Cameron, A. E., &#38; Wichers, Edward. (1962). <b>Report of the International Commission on Atomic Weights<sup>*</sup>(1961)</b>. <i>Journal of the American Chemical Society</i>, <i>84</i>(22), 4175–4197. https://doi.org/10.1021/ja00881a001 <a href="https://doi.org/10.1021/ja00881a001">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja00881a001">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., Thorpe, T., Ostwald, W., &#38; Urbain, G. (1911). Annual Report of the International Committee on Atomic Weights, 1912. <i>Journal of the American Chemical Society</i>, <i>33</i>(11), 1639–1642. https://doi.org/10.1021/ja02224a601 <a href="https://doi.org/10.1021/ja02224a601">CrossRef</a> <a href="https://qlever.scholia.wiki/doi/10.1021/ja02224a601">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>

## Turtle

This resource as a file: [Vanadium.ttl](Vanadium.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 unit: <http://qudt.org/vocab/unit/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ciaaw_draft:AW-V-standard-1902 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard-1911 ;
    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:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 51.2 ] .

ciaaw_draft:AW-V-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "1977"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1969 ;
    dcterms:source <https://doi.org/10.1351/pac197951020405> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 50.9415 ;
            qudt:standardUncertainty 0.0001 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-V-standard-1911 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard-1912 ;
    dcterms:issued "1911"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1902 ;
    dcterms:source <https://doi.org/10.1021/ja01928a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 51.06 ] .

ciaaw_draft:AW-V-standard-1912 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard-1925 ;
    dcterms:issued "1912"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1911 ;
    dcterms:source <https://doi.org/10.1021/ja02224a601> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 51.0 ] .

ciaaw_draft:AW-V-standard-1925 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard-1931 ;
    dcterms:issued "1925"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1912 ;
    dcterms:source <https://doi.org/10.1039/CT9252700913> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 50.96 ] .

ciaaw_draft:AW-V-standard-1931 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard-1961 ;
    dcterms:issued "1931"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1925 ;
    dcterms:source <https://doi.org/10.1039/JR9310001617> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 50.95 ] .

ciaaw_draft:AW-V-standard-1961 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard-1969 ;
    dcterms:issued "1961"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1931 ;
    dcterms:source <https://doi.org/10.1021/ja00881a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 50.942 ] .

ciaaw_draft:AW-V-standard-1969 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-V-standard ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-V-standard-1961 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Vanadium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 50.9414 ;
            qudt:standardUncertainty 0.0003 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

element:Vanadium a chemrof:ChemicalElement ;
    rdfs:label "vanadium"@en ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-V-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-V-standard,
        ciaaw_draft:AW-V-standard-1902,
        ciaaw_draft:AW-V-standard-1911,
        ciaaw_draft:AW-V-standard-1912,
        ciaaw_draft:AW-V-standard-1925,
        ciaaw_draft:AW-V-standard-1931,
        ciaaw_draft:AW-V-standard-1961,
        ciaaw_draft:AW-V-standard-1969 ;
    ciaaw:hasIsotope ciaaw_draft:V-50,
        ciaaw_draft:V-51 ;
    ciaaw:standardAtomicWeightUncertainty 0.0001 ;
    ciaaw:standardAtomicWeightValue 50.9415 ;
    chemrof:atomic_number 23 ;
    chemrof:symbol "V" .
```

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