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Sigma KEE - Caesium
Caesium

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


(atomicNumber Caesium 55) Mid-level-ontology.kif 26380-26380
(boilingPoint Caesium
    (MeasureFn 963 KelvinDegree))
Mid-level-ontology.kif 27436-27436
(documentation Caesium EnglishLanguage "Soft silvery-white metallic element belonging to group 1 of the periodic table. One of the three metals which are liquid at room temperature. Cs-133 is the natural, and only stable, isotope. Fifteen other radioisotopes exist. Caesium reacts explosively with cold water, and ice at temperatures above 157K. Caesium hydroxide is the strongest base known. Caesium is the most electropositive, most alkaline and has the least ionization potential of all the elements. Known uses include the basis of atomic clocks, catalyst for the hydrogenation of some organic compounds, and in photoelectric cells. Caesium was discovered by Gustav Kirchoff and Robert Bunsen in Germany in 1860 spectroscopically. Its identification was based upon the bright blue lines in its spectrum. The name comes from the latin word caesius, which means sky blue. Caesium should be considered highly toxic. Some of the radioisotopes are even more toxic.") Mid-level-ontology.kif 26387-26400
(externalImage Caesium "http://upload.wikimedia.org/wikipedia/commons/9/ 97/ Cs-TableImage.png") pictureList.kif 1685-1685
(meltingPoint Caesium
    (MeasureFn 301.55 KelvinDegree))
Mid-level-ontology.kif 27435-27435
(names Caesium "Caesium") Mid-level-ontology.kif 26378-26378
(subclass Caesium ElementalSubstance) Mid-level-ontology.kif 26377-26377

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


(conventionalShortName "Cs" Caesium) Mid-level-ontology.kif 26379-26379
(termFormat ChineseLanguage Caesium "铯") domainEnglishFormat.kif 12589-12589
(termFormat ChineseTraditionalLanguage Caesium "銫") domainEnglishFormat.kif 12588-12588
(termFormat EnglishLanguage Caesium "caesium") domainEnglishFormat.kif 12587-12587

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


(=>
    (and
        (instance ?ATOM Caesium)
        (instance ?ATOM Atom))
    (measure ?ATOM
        (MeasureFn 132.90545 Amu)))
Mid-level-ontology.kif 26381-26385


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