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

@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 element: <https://hendrikborgelt.github.io/Draft_for_IUPAC_CIAAW-Isotopic-Abundances-and-Atomic-Weights/elements/> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@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#> .

element:Strontium ciaaw:hasIsotope ciaaw_draft:Sr-84 .

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-r a ciaaw:Footnote ;
    skos:definition "Range in isotopic composition of normal terrestrial material prevents a more precise standard atomic weight being given; the tabulated value and uncertainty should be applicable to normal material."@en ;
    skos:notation "r" .

ciaaw_draft:Abundance-Sr84 a ciaaw:IsotopicAbundanceDeclaration ;
    ciaaw:footnote ciaaw:note-g,
        ciaaw:note-r ;
    ciaaw:ofIsotope ciaaw_draft:Sr-84 ;
    ciaaw:value [ a qudt:QuantityValue ;
            qudt:hasUnit unit:UNITLESS ;
            qudt:numericValue 0.0056 ;
            qudt:standardUncertainty 0.0002 ;
            ciaaw:significantFigures 2 ;
            ciaaw:significantFiguresUncertainty 1 ] .

ciaaw_draft:Sr-84 a chemrof:Isotope ;
    ciaaw:currentAbundance ciaaw_draft:Abundance-Sr84 ;
    ciaaw:hasDeclaration ciaaw_draft:Abundance-Sr84 ;
    ciaaw:massNumber 84 .