All alkali metals are highly reactive. Caesium, being one of the heavier alkali metals, is also one of the most reactive and is highly explosive when it comes in contact with water, as the hydrogen gas produced by the reaction is heated by the thermal energy released at the same time, causing ignition, and a violent explosion (the same as all alkali metals) - but caesium is so reactive, this explosive reaction can even be triggered by cold water or ice. Caesium hydroxide is an extremely strong base, and can etch glass.
The compound formed between sulfur and cesium is called cesium sulfide.
Cesium compounds normally found are not considered particularly toxic, though, like anything else, an excessive amount of cesium is not good for you. It is said to make people irritable and cause spasm because it replaces potassium in the body. Metallic cesium reacts violently with water, and is not something you want to touch. Cesium isotopes leaked from nuclear power plants can be a serious problem because of their radioactivity.
cesium phosphide
Cesium Nitride
The cesium ion is called cesium ion or Cs+.
The correct name for the cesium ion is "cesium ion" or "Cs+ ion".
Cesium Chromate = Cs2CrO4
cesium will sink
The formula for Cesium Peroxide is: Cs2O2
When cesium and fluorine react, they form the ionic compound cesium fluoride (CsF).
The high reactivity of cesium comes from its tendency to give up the one electron in its outermost shell and become a cesium 1+ ion, which is more stable. In cesium chloride, the cesium is already in its stable ionic form.
They form cesium sulfide, and the formula is Ce2S.