It forms colorful connections, became the ?guiding element? of the Chernobyl disaster against its will and repeatedly confiscated as contraband by the police or customs - there is a lot to tell about cesium.

To the article about cesium on the website Fascination Chemistry.

Like sodium and potassium, cesium reacts violently with water. This video from the Periodic Videos series shows the reaction in ultra-slow motion.

Cesium belongs to group 1 of the alkali elements.