@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t10-6>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "10-6" ;
  skosxl:prefLabel "Bohr radius"@en ;
  skosxl:altLabel "a_0"@en ;
  skos:definition "radius (<<iso80000-3>>) of the electron orbital in the hydrogen atom in its ground state in the Bohr model of the atom:\n\n[stem%unnumbered]\n++++\na_0 = (4pi epsilon_0 \"P{hbar}\"^2)/(m_\"e\"e^2)\n++++\n\nwhere\n\nstem:[epsilon_0]:: is the electric constant (<<iec80000-6>>),\nstem:[\"P{hbar}\"]:: is the reduced Planck constant (<<iso80000-1>>),\nstem:[m_\"e\"]:: is the rest mass (<<t10-2>>) of electron, and\nstem:[e]:: is the elementary charge (<<iso80000-1>>)\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-10> ;
  isq:hasUnit [
    skos:notation "m" ;
    skosxl:prefLabel "metre"@en
  ] ;
  isq:hasUnit [
    skos:notation "Aring" ;
    skosxl:prefLabel "angstrom"@en
  ] ;
  skos:note "The radius of the electron orbital in the stem:[\"H\"] atom in its ground state is stem:[a_0] in the Bohr model of the atom.\n\nångström (stem:[\"unitsml(Aring)\"]), stem:[1 \"unitsml(Aring)\" := 10^(-10) \"unitsml(m)\"]\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-10:ed-2:en:item:10-6> .