PROTOTYPE: a suggestion, not an official CIAAW or IUPAC page. Official values are at ciaaw.org.
IUPAC Project 2019-020-2-024Linked-data suggestion · unofficial prototype

tantalum

Property Value
Symbol Ta
Atomic number 73
IRI https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Tantalum
Wikidata Q1123

Standard atomic weight

Value Year Source Status Declaration
180.947 88(2) 2005 10.1351/pac200678112051 Current AW-Ta-standard
180.9479(1) 1979 10.1351/pac198052102349 Deprecated, see AW-Ta-standard AW-Ta-standard-1979
180.9479(3) 1969 10.1351/pac197021010091 Deprecated, see AW-Ta-standard-1979 AW-Ta-standard-1969
180.948 1961 10.1021/ja00881a001 Deprecated, see AW-Ta-standard-1969 AW-Ta-standard-1961
180.95 1953 10.1039/JR9540004713 Deprecated, see AW-Ta-standard-1961 AW-Ta-standard-1953
180.88 1936 10.1039/JR9370001893 Deprecated, see AW-Ta-standard-1953 AW-Ta-standard-1936
181.4 1931 10.1039/JR9310001617 Deprecated, see AW-Ta-standard-1936 AW-Ta-standard-1931
181.5 1912 10.1021/ja02224a601 Deprecated, see AW-Ta-standard-1931 AW-Ta-standard-1912
181 1909 10.1021/ja01931a001 Deprecated, see AW-Ta-standard-1912 AW-Ta-standard-1909
181 1907 10.1021/ja01956a001 Deprecated, see AW-Ta-standard-1909 AW-Ta-standard-1907
183 1902 10.1007/BF01370337 Deprecated, see AW-Ta-standard-1907 AW-Ta-standard-1902

Isotopes

A Representative isotopic composition Year Source Declaration ChEBI Wikidata
180 0.000 1176(23) — — Abundance-Ta180 — Q18882795
181 0.999 8824(23) — — Abundance-Ta181 — Q18882801

Bibliography

Atomic weights of the elements 1969. (1970). Pure and Applied Chemistry, 21(1), 91–108. https://doi.org/10.1351/pac197021010091 CrossRef Scholia
Atomic Weights of the Elements 1979. (1980). Pure and Applied Chemistry, 52(10), 2349–2384. https://doi.org/10.1351/pac198052102349 CrossRef Scholia
Baxter, G. P., Curie, Mme. M., Hönigschmid, O., Lebeau, P., & Meyer, R. J. (1931). First Report of the Committee on the Atomic Weights of the International Union of Chemistry. J. Chem. Soc., 0(0), 1617–1627. https://doi.org/10.1039/jr9310001617 CrossRef Scholia
Cameron, A. E., & Wichers, Edward. (1962). Report of the International Commission on Atomic Weights*(1961). Journal of the American Chemical Society, 84(22), 4175–4197. https://doi.org/10.1021/ja00881a001 CrossRef Scholia
Clarke, F. W., Ostwald, W., Thorpe, T. E., & Urbain, G. (1909). REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS. 1909. Journal of the American Chemical Society, 31(1), 1–6. https://doi.org/10.1021/ja01931a001 CrossRef Scholia
Clarke, F. W., Thorpe, T. E., Moissan, H., & Ostwald, W. (1907). REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS. 1907. Journal of the American Chemical Society, 29(2), 107–111. https://doi.org/10.1021/ja01956a001 CrossRef Scholia
Clarke, F., Thorpe, T., Ostwald, W., & Urbain, G. (1911). Annual Report of the International Committee on Atomic Weights, 1912. Journal of the American Chemical Society, 33(11), 1639–1642. https://doi.org/10.1021/ja02224a601 CrossRef Scholia
Hönigschmid, O., & Lebeau, P. (1937). Sixth Report of the Committee on Atomic Weights of the International Union of Chemistry. J. Chem. Soc., 0(0), 1893–1900. https://doi.org/10.1039/jr9370001893 CrossRef Scholia
International atomic weights, 1953. (1954). Journal of the Chemical Society (Resumed), 4713. https://doi.org/10.1039/jr9540004713 CrossRef Scholia
Richards, Baxter, Hinrichsen, Köthner, P., & Pellini, S. (1902). Zur Festsetzung der Atomgewichte. Fresenius’ Zeitschrift für analytische Chemie, 41(2), 139–140. https://doi.org/10.1007/bf01370337 CrossRef Scholia
Wieser, M. E. (2006). Atomic weights of the elements 2005 (IUPAC Technical Report). Pure and Applied Chemistry, 78(11), 2051–2066. https://doi.org/10.1351/pac200678112051 CrossRef Scholia

Turtle

This resource as a file: Tantalum.ttl

# 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-Ta-standard-1902 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1907 ;
    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:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 183.0 ] .

ciaaw_draft:AW-Ta-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "2005"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1979 ;
    dcterms:source <https://doi.org/10.1351/pac200678112051> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 180.94788 ;
            qudt:standardUncertainty 0.00002 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Ta-standard-1907 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1909 ;
    dcterms:issued "1907"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1902 ;
    dcterms:source <https://doi.org/10.1021/ja01956a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 181.0 ] .

ciaaw_draft:AW-Ta-standard-1909 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1912 ;
    dcterms:issued "1909"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1907 ;
    dcterms:source <https://doi.org/10.1021/ja01931a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 181.0 ] .

ciaaw_draft:AW-Ta-standard-1912 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1931 ;
    dcterms:issued "1912"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1909 ;
    dcterms:source <https://doi.org/10.1021/ja02224a601> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 181.5 ] .

ciaaw_draft:AW-Ta-standard-1931 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1936 ;
    dcterms:issued "1931"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1912 ;
    dcterms:source <https://doi.org/10.1039/JR9310001617> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 181.4 ] .

ciaaw_draft:AW-Ta-standard-1936 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1953 ;
    dcterms:issued "1936"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1931 ;
    dcterms:source <https://doi.org/10.1039/JR9370001893> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 180.88 ] .

ciaaw_draft:AW-Ta-standard-1953 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1961 ;
    dcterms:issued "1953"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1936 ;
    dcterms:source <https://doi.org/10.1039/JR9540004713> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 180.95 ] .

ciaaw_draft:AW-Ta-standard-1961 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1969 ;
    dcterms:issued "1961"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1953 ;
    dcterms:source <https://doi.org/10.1021/ja00881a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 180.948 ] .

ciaaw_draft:AW-Ta-standard-1969 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard-1979 ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1961 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 180.9479 ;
            qudt:standardUncertainty 0.0003 ;
            ciaaw:significantFigures 7 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Ta-standard-1979 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Ta-standard ;
    dcterms:issued "1979"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Ta-standard-1969 ;
    dcterms:source <https://doi.org/10.1351/pac198052102349> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Tantalum ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 180.9479 ;
            qudt:standardUncertainty 0.0001 ;
            ciaaw:significantFigures 7 ;
            ciaaw:significantFiguresUncertainty 1 ] .

element:Tantalum a chemrof:ChemicalElement ;
    rdfs:label "tantalum"@en ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-Ta-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-Ta-standard,
        ciaaw_draft:AW-Ta-standard-1902,
        ciaaw_draft:AW-Ta-standard-1907,
        ciaaw_draft:AW-Ta-standard-1909,
        ciaaw_draft:AW-Ta-standard-1912,
        ciaaw_draft:AW-Ta-standard-1931,
        ciaaw_draft:AW-Ta-standard-1936,
        ciaaw_draft:AW-Ta-standard-1953,
        ciaaw_draft:AW-Ta-standard-1961,
        ciaaw_draft:AW-Ta-standard-1969,
        ciaaw_draft:AW-Ta-standard-1979 ;
    ciaaw:hasIsotope ciaaw_draft:Ta-180,
        ciaaw_draft:Ta-181 ;
    ciaaw:standardAtomicWeightUncertainty 0.00002 ;
    ciaaw:standardAtomicWeightValue 180.94788 ;
    chemrof:atomic_number 73 ;
    chemrof:symbol "Ta" .

All atomic weights · All isotopic abundances