Cesium

• - State​ ​of​ ​matter​ ​at​ ​room​ ​temperature​ ​is​ ​a​ ​solid
  
  
• - Number​ ​of​ ​valence​ ​electrons​ ​is​ ​1.


• - Cesium​ ​has​ ​a​ ​low​ ​melting​ ​point and a ​silvery-gold​ ​color.


• - Density=​1.93​ ​g/cm³.


• - Good​ ​Thermal​ ​and​ ​electrical​ ​conductivity.


• - Cesium​ ​is​ ​flammable​ ​at​ ​room​ ​temperature​ ​when​ ​exposed​ ​to​ ​air.


• - Cesium​ ​is​ ​not​ ​essential​ ​for​ ​life.


• - Important​ ​use:

• - 1= atomic​ ​clocks

• - 2= photoelectric​ ​cells

• - 3= radiation​ ​therapy



• - Research= used​ ​to​ ​treat​ ​cancer.

• SOURCES:


• https://www.livescience.com/37578-cesium.html
• image: www.chemicalelements.com