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 react with water.
Caesium is a solid metal.
Caesium was discovered in 1860.
sorry i know witch one it is but i could never find the name of it.
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
The are the other alkali metals: lithium, potassium, rubidium, caesium.
Special properties are unusual properties a mineral may have that most minerals don't.
metal
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.
Something to do with it glows in the dark..