Cesium

Word CESIUM
Character 6
Hyphenation cesium
Pronunciations N/A

Definitions and meanings of "Cesium"

What do we mean by cesium?

A soft, silvery-white ductile, metallic element that is the most electropositive and alkaline of the elements and is used in atomic clocks and photoelectric cells and to catalyze hydrogenation of some organic compounds. The fundamental unit of time in the International System, the second, is based on the frequency of radiation between two energy states in an atom of the Cs-133 isotope. Atomic number 55; atomic weight 132.905; melting point 28.44°C; boiling point 671°C; specific gravity 1.873; valence 1. cross-reference: Periodic Table. noun

The chemical element of atomic number 55. It is a univalent element, the most electropositive metal. Symbol Cs; atomic weight 132.905. IT has a melting point of 28.4° C. noun

Alternative spelling of caesium. noun

A soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal noun

The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.

Synonyms and Antonyms for Cesium

  • Antonyms for cesium
  • Cesium antonyms not found!

The word "cesium" in example sentences

"It stands to reason that at some point the Ukrainian government would like to be able to use that land again, but the scientists have calculated that what they call cesium's" ecological half-life "- the time for half the cesium to disappear from the local environment - is between ❋ Unknown (2009)

Corporation and then NSF and used it to thoroughly develop a novel experimental approach for measuring atomic PV in cesium. ❋ Unknown (2002)

In the second phase, a drug called cesium fluoride, known to stimulate the enzyme adenylate cyclase, was added to the blood samples, and the activity of the enzyme was measured. ❋ Kenneth Blum (1991)

Even before the explosion on Saturday, officials said they had detected radioactive cesium, which is created when uranium fuel is split, an indication that some of the nuclear fuel in the reactor was already damaged. ❋ By HIROKO TABUCHI (2011)

Since 1967, the official definition of a second is 9,192,631,770 cycles of the radiation that gets an atom of the element called cesium to vibrate between two energy states. ❋ Life's Little Mysteries (2010)

And when the nuclear fission byproduct known as cesium 137 traveled faster underground than anticipated at another location, Zachara found that residual heat and high salt concentrations from the wastes unexpectedly affected how water and minerals reacted with the cesium. ❋ Unknown (2010)

Abandoned medical scanners, food processing devices and mining equipment containing radioactive metals such as cesium-137 and cobalt-60 are often picked up by scrap collectors and sold to recyclers, according to the International Atomic Energy Agency, the UN's nuclear arm. ❋ Dave Hurteau (2008)

The thyroid can be affected by ionizing radiation through the skin by gamma radiation, including X rays; by fission products, such as cesium; or by ingestion or inhalation of iodine-131 (131I), an isotope present in nuclear fission products. ❋ Unknown (2009)

Reactive gas-filled vapour cells can be used in frequency standard devices, especially as a cavity in atomic clocks, where the time is delivered during the hyperstructure transition from the metal alkali atoms such as cesium or rubidium. ❋ Unknown (2010)

They also offer evidence of atmospheric releases of dangerously long-lived radioactive particles such as cesium and strontium -- releases denied by the Kemeny Commission but indicated in the Thompsons 'own post-disaster monitoring and detailed in the report -- and show that there were pathways for the radiation to escape into the environment. ❋ Unknown (2009)

Today, the nests, which could number in the thousands, are "fairly highly contaminated" with radioactive isotopes, such as cesium and cobalt, but don't pose a significant threat to workers digging them up.

No one could truly appreciate the global slowdown until the invention of the atomic clock, which uses the oscillation frequencies of atoms such as cesium, hydrogen or rubidium to mark the passage of time. ❋ Unknown (2009)

Water is being pumped through the zeolite-filled device to collect cesium and other radioactive materials. ❋ Mitsuru Obe (2011)

The system is made up mainly of zeolite-containing cartridges, developed by Kurion Inc. of the U.S., to absorb radioactive cesium and iodine, and of equipment built by French energy company Areva SA to remove radioactive materials. ❋ Mitsuru Obe (2011)

Cross Reference for Cesium

  • Cesium cross reference not found!

What does cesium mean?

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