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   Caesium
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| appearance as argument number 1 |
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| (atomicNumber Caesium 55) | Mid-level-ontology.kif 28229-28229 | 55 是 铯 的 atomic 数字 |
| (boilingPoint Caesium (MeasureFn 963.0 KelvinDegree)) |
Mid-level-ontology.kif 29341-29341 | 963.0 凯文度 是 铯 的 boiling 点 |
| (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 28237-28250 | |
| (externalImage Caesium "http://upload.wikimedia.org/wikipedia/commons/9/ 97/ Cs-TableImage.png") | pictureList.kif 1684-1684 | |
| (meltingPoint Caesium (MeasureFn 301.55 KelvinDegree)) |
Mid-level-ontology.kif 29340-29340 | 301.55 凯文度 是 铯 的 melting 点 |
| (names Caesium "Caesium") | Mid-level-ontology.kif 28227-28227 | "Caesium" 的名 是 铯 |
| (roomTempState Caesium Solid) | Mid-level-ontology.kif 31537-31537 | roomTempState 铯 and 固体 |
| (subclass Caesium ElementalSubstance) | Mid-level-ontology.kif 28226-28226 | 铯 是 元素物质 的 subclass |
| appearance as argument number 2 |
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| (conventionalShortName "Cs" Caesium) | Mid-level-ontology.kif 28228-28228 | 铯 是 "Cs" 的 conventional 简称 |
| (termFormat ChineseLanguage Caesium "铯") | domainEnglishFormat.kif 12643-12643 | |
| (termFormat ChineseTraditionalLanguage Caesium "銫") | domainEnglishFormat.kif 12642-12642 | |
| (termFormat EnglishLanguage Caesium "caesium") | domainEnglishFormat.kif 12641-12641 |
| antecedent |
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| (=> (and (instance ?ATOM Caesium) (instance ?ATOM Atom)) (measure ?ATOM (MeasureFn 132.90545 Amu))) |
Mid-level-ontology.kif 28231-28235 |
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