Caesium or Cesium (Cs) is a chemical element with atomic number (Z) 55, group 1, period 6, and atomic weight 132.905. The Caesium (Cs) is silvery gold, soft, and ductile that is the most electropositive and most alkaline element, used in industry as a catalyst promoter, boosting the performance of other metal oxides in the capacity and for the hydrogenation of organic compounds. (Refer to the Chemical Element; Periodic Table)
