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.
a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
Naturally occurring element with 55 protons in its nucleus. Some manmade isotopes of cesium are radioactive (e.g., cesium 134, cesium-137).
a metal that may be stable (nonradioactive) or unstable (radioactive). The most common radioactive form of cesium is cesium-137. Another fairly common radioisotope is cesium-134. Cesium-137 is much more significant as an environmental contaminant than cesium-134. It is also very useful in industry for its strong radioactivity. [] [ Click "BackButton" for previous location
A radionuclide created during the process of irradiating uranium to make plutonium. It collects in the bone marrow and is linked to leukemia. Soluble forms of cesium cause liver damage, liver cancer, nasal cavity cancers and bone cancer. Produced at Hanford, Washington.
Cesium-137 is a human-made radioactive element produced by breaking up uranium atoms, such as in a nuclear power plant or in atomic weapons. It remains dangerous for a long time because it takes 30 years for it to lose half of its radiation.