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

hydrogen

Property Value
Symbol H
Atomic number 1
IRI https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/Hydrogen
ChEBI CHEBI:49637
Wikidata Q556

Standard atomic weight

Value Year Source Status Declaration
[1.007 84, 1.008 11] 2009 10.1351/PAC-REP-10-09-14 Current AW-H-standard-2009
1.007 94(7) 1981 10.1351/pac198355071101 Deprecated, see AW-H-standard-2009 AW-H-standard-1981
1.0079(1) 1971 10.1351/pac197230030637 Deprecated, see AW-H-standard-1981 AW-H-standard-1971
1.0080(3) 1969 10.1351/pac197021010091 Deprecated, see AW-H-standard-1971 AW-H-standard-1969
1.007 97(1) 1961 10.1021/ja00881a001 Deprecated, see AW-H-standard-1969 AW-H-standard-1961
1.0080 1940 10.1039/JR9400000475 Deprecated, see AW-H-standard-1961 AW-H-standard-1940
1.0081 1938 10.1039/JR9380001101 Deprecated, see AW-H-standard-1940 AW-H-standard-1938
1.0078 1931 10.1039/JR9310001617 Deprecated, see AW-H-standard-1938 AW-H-standard-1931
1.008 1903 10.1021/ja02003a001 Deprecated, see AW-H-standard-1931 AW-H-standard-1903
1.01 1902 10.1007/BF01370337 Deprecated, see AW-H-standard-1903 AW-H-standard-1902

Notes: m

Isotopes

A Representative isotopic composition Year Source Declaration ChEBI Wikidata
1 [0.999 72, 0.999 99] — 10.1515/pac-2015-0503 Abundance-H1 CHEBI:29236 Q12830437
2 [0.000 01, 0.000 28] 2016 10.1515/pac-2015-0503 Abundance-H2-2016 CHEBI:29237 Q102296

Notes: m

Notes

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

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 1971. (1972). Pure and Applied Chemistry, 30(3–4), 637–650. https://doi.org/10.1351/pac197230030637 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
Baxter, G. P., Guichard, M., Hönigschmid, O., & Whytlaw-Gray, R. (1940). Tenth Report of the Committee on Atomic Weights of the International Union of Chemistry. J. Chem. Soc., 0(0), 475–478. https://doi.org/10.1039/jr9400000475 CrossRef Scholia
Baxter, G. P., Hönigschmid, O., & Lebeau, P. (1938). Eighth Report of the Committee on Atomic Weights of the International Union of Chemistry. J. Chem. Soc., 0(0), 1101–1109. https://doi.org/10.1039/jr9380001101 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. (1903). REPORT OF THE INTERNATIONAL COMMITTEE ON ATOMIC WEIGHTS. Journal of the American Chemical Society, 25(1), 1–5. https://doi.org/10.1021/ja02003a001 CrossRef Scholia
Holden, N. E., & Martin, R. L. (1983). Atomic weights of the elements 1981. Pure and Applied Chemistry, 55(7), 1101–1118. https://doi.org/10.1351/pac198355071101 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). Isotopic compositions of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry, 88(3), 293–306. https://doi.org/10.1515/pac-2015-0503 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., & Coplen, T. B. (2010). Atomic weights of the elements 2009 (IUPAC Technical Report). Pure and Applied Chemistry, 83(2), 359–396. https://doi.org/10.1351/pac-rep-10-09-14 CrossRef Scholia

Turtle

This resource as a file: Hydrogen.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 chebi: <http://purl.obolibrary.org/obo/CHEBI_> .
@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-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-H-standard-1902 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1903 ;
    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:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.01 ] .

ciaaw_draft:AW-H-standard-1903 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1931 ;
    dcterms:issued "1903"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1902 ;
    dcterms:source <https://doi.org/10.1021/ja02003a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.008 ] .

ciaaw_draft:AW-H-standard-1931 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1938 ;
    dcterms:issued "1931"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1903 ;
    dcterms:source <https://doi.org/10.1039/JR9310001617> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.0078 ] .

ciaaw_draft:AW-H-standard-1938 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1940 ;
    dcterms:issued "1938"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1931 ;
    dcterms:source <https://doi.org/10.1039/JR9380001101> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.0081 ] .

ciaaw_draft:AW-H-standard-1940 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1961 ;
    dcterms:issued "1940"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1938 ;
    dcterms:source <https://doi.org/10.1039/JR9400000475> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.0080 ] .

ciaaw_draft:AW-H-standard-1961 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1969 ;
    dcterms:issued "1961"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1940 ;
    dcterms:source <https://doi.org/10.1021/ja00881a001> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.00797 ;
            qudt:standardUncertainty 0.00001 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-H-standard-1969 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1971 ;
    dcterms:issued "1969"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1961 ;
    dcterms:source <https://doi.org/10.1351/pac197021010091> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.0080 ;
            qudt:standardUncertainty 0.0003 ;
            ciaaw:significantFigures 5 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-H-standard-1971 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-1981 ;
    dcterms:issued "1971"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1969 ;
    dcterms:source <https://doi.org/10.1351/pac197230030637> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.0079 ;
            qudt:standardUncertainty 0.0001 ;
            ciaaw:significantFigures 5 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-H-standard-1981 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:isReplacedBy ciaaw_draft:AW-H-standard-2009 ;
    dcterms:issued "1981"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1971 ;
    dcterms:source <https://doi.org/10.1351/pac198355071101> ;
    owl:deprecated true ;
    adms:status <http://purl.org/adms/status/Deprecated> ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 1.00794 ;
            qudt:standardUncertainty 0.00007 ;
            ciaaw:significantFigures 6 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:AW-H-standard-2009 a ciaaw:StandardAtomicWeightDeclaration ;
    dcterms:issued "2009"^^xsd:gYear ;
    dcterms:replaces ciaaw_draft:AW-H-standard-1981 ;
    dcterms:source <https://doi.org/10.1351/PAC-REP-10-09-14> ;
    ciaaw:footnote ciaaw:note-m ;
    ciaaw:ofElement element:Hydrogen ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:lowerBound 1.00784 ;
            qudt:upperBound 1.00811 ;
            ciaaw:significantFiguresLower 6 ;
            ciaaw:significantFiguresUpper 6 ] .

element:Hydrogen a chemrof:ChemicalElement ;
    rdfs:label "hydrogen"@en ;
    skos:closeMatch chebi:49637 ;
    ciaaw:currentStandardAtomicWeight ciaaw_draft:AW-H-standard-2009 ;
    ciaaw:hasDeclaration ciaaw_draft:AW-H-standard-1902,
        ciaaw_draft:AW-H-standard-1903,
        ciaaw_draft:AW-H-standard-1931,
        ciaaw_draft:AW-H-standard-1938,
        ciaaw_draft:AW-H-standard-1940,
        ciaaw_draft:AW-H-standard-1961,
        ciaaw_draft:AW-H-standard-1969,
        ciaaw_draft:AW-H-standard-1971,
        ciaaw_draft:AW-H-standard-1981,
        ciaaw_draft:AW-H-standard-2009 ;
    ciaaw:hasIsotope ciaaw_draft:H-1,
        ciaaw_draft:H-2 ;
    ciaaw:standardAtomicWeightLower 1.00784 ;
    ciaaw:standardAtomicWeightUpper 1.00811 ;
    chemrof:atomic_number 1 ;
    chemrof:symbol "H" .

All atomic weights · All isotopic abundances