caesium
IPA: sˈiziʌm
noun
- The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
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Examples of "caesium" in Sentences
- From that sample, radioactive caesium 134 and caesium 137 were also detected in slightly larger amounts than the limits set by law.
- It was confirmed that radioactive caesium, one of the elements released when overheating causes core damage, had been detected around the plant.
- In September officials in Yokohama said they had detected 40,200 becquerels of radioactive caesium per kilogramme of sediment collected from a roadside ditch.
- Radioactive caesium 137, for instance, mimics potassium and thus can be taken up in plants that are later eaten and the radioactivity concentrated by grazing animals.
- Despite the revelation that caesium had been detected, Japanese officials still claim the reactor's container was not damaged and that radiation levels have started to fall.
- Their light is emitted by vaporised alkali metals such as caesium or potassium. reports they have "mass-to-power ratios that far exceed what is possible with today's other laser systems".
- There has always been a natural level of radioactivity in certain soils – those on a granite substrate for instance – but the caesium 137 fallout from Chernobyl is still relatively high in some areas.
- Have you a device by which I might measure the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom?
- Per Wikipedia: Mercury is a heavy, silvery d-block metal [that] is one of six elements that are liquid at or near room temperature and pressure, the others being caesium, francium, gallium, bromine, and rubidium.
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