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

scandium

Property Value
Symbol Sc
Atomic number 21
IRI https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Scandium
Wikidata Q713

Standard atomic weight

Value Year Source Status Declaration
44.955 907(4) 2021 10.1515/pac-2019-0603 Current AW-Sc-standard
44.955 908(5) 2013 10.1515/pac-2015-0305 Deprecated, see AW-Sc-standard AW-Sc-standard-2013
44.955 912(6) 2005 10.1351/pac200678112051 Deprecated, see AW-Sc-standard-2013 AW-Sc-standard-2005
44.955 910(8) 1995 10.1351/pac199668122339 Deprecated, see AW-Sc-standard-2005 AW-Sc-standard-1995
44.955 910(9) 1985 10.1351/pac198658121677 Deprecated, see AW-Sc-standard-1995 AW-Sc-standard-1985
44.955 91(1) 1983 10.1351/pac198456060653 Deprecated, see AW-Sc-standard-1985 AW-Sc-standard-1983
44.9559(1) 1969 10.1351/pac197021010091 Deprecated, see AW-Sc-standard-1983 AW-Sc-standard-1969
44.956 1961 10.1021/ja00881a001 Deprecated, see AW-Sc-standard-1969 AW-Sc-standard-1961
44.96 1951 10.1039/JR9530000001 Deprecated, see AW-Sc-standard-1961 AW-Sc-standard-1951
45.10 1925 10.1039/CT9252700913 Deprecated, see AW-Sc-standard-1951 AW-Sc-standard-1925
45.1 1921 10.1021/ja01454a600 Deprecated, see AW-Sc-standard-1925 AW-Sc-standard-1921
44.1 1902 10.1007/BF01370337 Deprecated, see AW-Sc-standard-1921 AW-Sc-standard-1902

Isotopes

A Representative isotopic composition Year Source Declaration ChEBI Wikidata
45 1 — — Abundance-Sc45 — Q1975917

Bibliography

Aston, F. W., Baxter, G. P., Brauner, B., Debierne, A., Leduc, A., Richards, T. W., Soddy, F., & 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. Journal of the Chemical Society, Transactions, 127, 913. https://doi.org/10.1039/ct9252700913 CrossRef Scholia
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 1985. (1986). Pure and Applied Chemistry, 58(12), 1677–1692. https://doi.org/10.1351/pac198658121677 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., Thorpe, T., & Urbain, G. (1920). Report of the International Committee on Atomic Weights for 1920-1921. Journal of the American Chemical Society, 42(9), 1761–1764. https://doi.org/10.1021/ja01454a600 CrossRef Scholia
Coplen, T. B. (1996). Atomic weights of the elements 1995 (Technical Report). Pure and Applied Chemistry, 68(12), 2339–2359. https://doi.org/10.1351/pac199668122339 CrossRef Scholia
Holden, N. E., & Martin, R. L. (1984). Atomic weights of the elements 1983. Pure and Applied Chemistry, 56(6), 653–674. https://doi.org/10.1351/pac198456060653 CrossRef Scholia
International atomic weights, 1951. (1953). Journal of the Chemical Society (Resumed), 1. https://doi.org/10.1039/jr9530000001 CrossRef Scholia
Meija, J., Coplen, T. B., Berglund, M., Brand, W. A., De Bièvre, P., Gröning, M., Holden, N. E., Irrgeher, J., Loss, R. D., Walczyk, T., & Prohaska, T. (2016). Atomic weights of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry, 88(3), 265–291. https://doi.org/10.1515/pac-2015-0305 CrossRef Scholia
Prohaska, T., Irrgeher, J., Benefield, J., Böhlke, J. K., Chesson, L. A., Coplen, T. B., Ding, T., Dunn, P. J. H., Gröning, M., Holden, N. E., Meijer, H. A. J., Moossen, H., Possolo, A., Takahashi, Y., Vogl, J., Walczyk, T., Wang, J., Wieser, M. E., Yoneda, S., … Meija, J. (2022). Standard atomic weights of the elements 2021 (IUPAC Technical Report). Pure and Applied Chemistry, 94(5), 573–600. https://doi.org/10.1515/pac-2019-0603 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: Scandium.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-Sc-standard-1902 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1921 ;
    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:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.1 ] .

ciaaw_draft:AW-Sc-standard a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "2021"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-2013 ;
    dcterms:source <https://doi.org/10.1515/pac-2019-0603> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.955907 ;
            qudt:standardUncertainty 0.000004 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sc-standard-1921 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1925 ;
    dcterms:issued "1921"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1902 ;
    dcterms:source <https://doi.org/10.1021/ja01454a600> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 45.1 ] .

ciaaw_draft:AW-Sc-standard-1925 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1951 ;
    dcterms:issued "1925"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1921 ;
    dcterms:source <https://doi.org/10.1039/CT9252700913> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 45.10 ] .

ciaaw_draft:AW-Sc-standard-1951 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1961 ;
    dcterms:issued "1951"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1925 ;
    dcterms:source <https://doi.org/10.1039/JR9530000001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.96 ] .

ciaaw_draft:AW-Sc-standard-1961 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1969 ;
    dcterms:issued "1961"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1951 ;
    dcterms:source <https://doi.org/10.1021/ja00881a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.956 ] .

ciaaw_draft:AW-Sc-standard-1969 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1983 ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1961 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.9559 ;
            qudt:standardUncertainty 0.0001 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sc-standard-1983 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1985 ;
    dcterms:issued "1983"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1969 ;
    dcterms:source <https://doi.org/10.1351/pac198456060653> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.95591 ;
            qudt:standardUncertainty 0.00001 ;
            ciaaw:significantFigures 7 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sc-standard-1985 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-1995 ;
    dcterms:issued "1985"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1983 ;
    dcterms:source <https://doi.org/10.1351/pac198658121677> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.955910 ;
            qudt:standardUncertainty 0.000009 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sc-standard-1995 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-2005 ;
    dcterms:issued "1995"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1985 ;
    dcterms:source <https://doi.org/10.1351/pac199668122339> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.955910 ;
            qudt:standardUncertainty 0.000008 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sc-standard-2005 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard-2013 ;
    dcterms:issued "2005"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-1995 ;
    dcterms:source <https://doi.org/10.1351/pac200678112051> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.955912 ;
            qudt:standardUncertainty 0.000006 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-Sc-standard-2013 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-Sc-standard ;
    dcterms:issued "2013"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-Sc-standard-2005 ;
    dcterms:source <https://doi.org/10.1515/pac-2015-0305> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Scandium ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 44.955908 ;
            qudt:standardUncertainty 0.000005 ;
            ciaaw:significantFigures 8 ;
            ciaaw:significantFiguresUncertainty 1 ] .

element:Scandium a chemrof:ChemicalElement ;
    rdfs:label "scandium"@en ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-Sc-standard ;
    ciaaw:hasDeclaration ciaaw_draft:AW-Sc-standard,
        ciaaw_draft:AW-Sc-standard-1902,
        ciaaw_draft:AW-Sc-standard-1921,
        ciaaw_draft:AW-Sc-standard-1925,
        ciaaw_draft:AW-Sc-standard-1951,
        ciaaw_draft:AW-Sc-standard-1961,
        ciaaw_draft:AW-Sc-standard-1969,
        ciaaw_draft:AW-Sc-standard-1983,
        ciaaw_draft:AW-Sc-standard-1985,
        ciaaw_draft:AW-Sc-standard-1995,
        ciaaw_draft:AW-Sc-standard-2005,
        ciaaw_draft:AW-Sc-standard-2013 ;
    ciaaw:hasIsotope ciaaw_draft:Sc-45 ;
    ciaaw:standardAtomicWeightUncertainty 0.000004 ;
    ciaaw:standardAtomicWeightValue 44.955907 ;
    chemrof:atomic_number 21 ;
    chemrof:symbol "Sc" .

All atomic weights · All isotopic abundances