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Sigma KEE - Actinium
Actinium

appearance as argument number 1
-------------------------


(atomicNumber Actinium 89) Mid-level-ontology.kif 26978-26978
(boilingPoint Actinium
    (MeasureFn 3470 KelvinDegree))
Mid-level-ontology.kif 27504-27504
(documentation Actinium EnglishLanguage "Silvery radioactive metallic element, belongs to group 3 of the periodic table. The most stable isotope, Ac-227, has a half-life of 217 years. Ac-228 (half-life of 6.13 hours) also occurs in nature. There are 22 other artificial isotopes, all radioactive and having very short half-lives. Chemistry similar to lanthanum. Used as a source of alpha particles. Discovered by A. Debierne in 1899.") Mid-level-ontology.kif 26985-26990
(externalImage Actinium "http://upload.wikimedia.org/wikipedia/commons/d/ dd/ Ac-TableImage.png") pictureList.kif 1618-1618
(meltingPoint Actinium
    (MeasureFn 1320 KelvinDegree))
Mid-level-ontology.kif 27503-27503
(names Actinium "Actinium") Mid-level-ontology.kif 26976-26976
(subclass Actinium ElementalSubstance) Mid-level-ontology.kif 26975-26975

appearance as argument number 2
-------------------------


(conventionalShortName "Ac" Actinium) Mid-level-ontology.kif 26977-26977
(termFormat ChineseLanguage Actinium "锕") domainEnglishFormat.kif 5363-5363
(termFormat ChineseTraditionalLanguage Actinium "錒") domainEnglishFormat.kif 5362-5362
(termFormat EnglishLanguage Actinium "actinium") domainEnglishFormat.kif 5361-5361

antecedent
-------------------------


(=>
    (and
        (instance ?ATOM Actinium)
        (instance ?ATOM Atom))
    (measure ?ATOM
        (MeasureFn 227 Amu)))
Mid-level-ontology.kif 26979-26983


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