Cesium, element symbol Cs, atomic number 55, located in the
sixth period, IA group, its simple substance is a light golden yellow
active metal, with a low melting point, it is easily oxidized in the
air, and can react violently with water to generate hydrogen.
Explosion. Cesium has no elemental form in nature, and is only rarely
distributed in the land and ocean in the form of salt. Cesium is an
important material for manufacturing vacuum parts, photoelectric tubes,
Cesium can be prepared by electrolysis and thermal reduction. However,
due to its strong corrosiveness to the electrode, electrolysis is
generally not used in the industry. Therefore, in the industry, cesium
metal is produced by reducing cesium chloride with metal calcium at high
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