Caesium has physical and chemical properties similar to those of rubidium and potassium. Melting point: 301.59 K (28.44☌ or 83. Caesium is a chemical element with the symbol Cs and atomic number 55. Caesium is a soft, silvery-gold alkali metal with a melting point of 28.5 C, which makes it one of only five elemental metals that are liquid at or near room temperature.Radioactive Cesium-137 is an artificial isotope that is used for cancer.
Here are a few important facts about Cesium. Atomic clocks use the microwave spectral line emitted by Cesium-133 for reference. Since cesium has photoemissive properties, converting light to electron flow, it has use in photoelectric cells to convert sunlight into electricity. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. A cesium-based atomic clock will lose one-second per 100 million years. Since cesium combines readily with oxygen, it has uses as a getter material, which combines with and removes trace gases from vacuum tubes.Ĭesium also has some uses in extremely accurate atomic clocks. Its largest use in modern times is in cesium formate drilling fluids utilized in oil well drilling. Due to cesium having the second-lowest melting point of all metallic elements, its uses are quite limited. Cesium is a chemical element of the periodic table with chemical symbol Cs and atomic number 55 with an atomic weight of 132.905 u and is classed as alkali.
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