| Caesium
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| appearance as argument number 1 |
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| (atomicNumber Caesium 55) | Mid-level-ontology.kif 28462-28462 | |
| (boilingPoint Caesium (MeasureFn 963.0 KelvinDegree)) |
Mid-level-ontology.kif 29574-29574 | |
| (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 28470-28483 | |
| (externalImage Caesium "http://upload.wikimedia.org/wikipedia/commons/9/ 97/ Cs-TableImage.png") | pictureList.kif 1683-1683 | |
| (meltingPoint Caesium (MeasureFn 301.55 KelvinDegree)) |
Mid-level-ontology.kif 29573-29573 | |
| (names Caesium "Caesium") | Mid-level-ontology.kif 28460-28460 | |
| (roomTempState Caesium Solid) | Mid-level-ontology.kif 31770-31770 | |
| (subclass Caesium ElementalSubstance) | Mid-level-ontology.kif 28459-28459 |
| appearance as argument number 2 |
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| (conventionalShortName "Cs" Caesium) | Mid-level-ontology.kif 28461-28461 | |
| (termFormat ChineseLanguage Caesium "铯") | domainEnglishFormat.kif 12654-12654 | |
| (termFormat ChineseTraditionalLanguage Caesium "銫") | domainEnglishFormat.kif 12653-12653 | |
| (termFormat EnglishLanguage Caesium "caesium") | domainEnglishFormat.kif 12652-12652 |
| antecedent |
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| (=> (and (instance ?ATOM Caesium) (instance ?ATOM Atom)) (measure ?ATOM (MeasureFn 132.90545 Amu))) |
Mid-level-ontology.kif 28464-28468 |
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