Caesium has a very low value for the electronegativity.
Caesium is freshly cut, it have a metallic shine, but this disappears rapidly due to reaction of exposed metal surface with oxygen in the air
Caesium was discovered in 1860.
Caesium is a solid metal.
Caesium react with water.
The chemical formula of caesium periodate is CsIO4.
After my opinion nitrogen hasn't any unusual and very specific properties.
Only caesium has the same properties as caesium. There are other elements which have some similar properties.
The chemistry of francium is not known; francium has properties similar to caesium.
It is chemically inert gas
Read this article(in the link)....it might help.
Caesium is freshly cut, it have a metallic shine, but this disappears rapidly due to reaction of exposed metal surface with oxygen in the air
Yes, caesium oxide is a basic oxide, not an amphoteric oxide. It reacts with acids to form salts and water but does not exhibit acidic properties by reacting with bases.
Yes, caesium is a good conductor of heat because it has metallic properties. It has a high thermal conductivity due to the delocalized electrons that can move freely and transfer heat energy efficiently.
metal
Caesium + water ------> Caesium hydroxide + Hydrogen
The chemistry of francium is not experimentally known; it is only estimated. Francium should be have properties similar to caesium.
High cohesionHigh adhesionHigh heat capacityBecomes less dense when frozenDissolves almost any polar substanceThere might be others but these are the 5 most essential and unusual ones.