Group 1
+ alkaline metals+ low melting/boiling/densities
+ reactivity decreases down the group
+ react with halogen/oxygen/hydrogen/water
+ groups form ionic bonding
Transition Elements
+ form complex ions+ different oxidation number
+ high melting/boiling/density
+ act as a catalyst
Group 17
+ known as halogens(diatomic)+ all non-metals
+ reactivity decreases down the group
+ react with water/hydroxide/iron/phosphorus
+ oxidizing agents decreases down the group
Group 18
+ monoatomic gases+ unreactive(stable)
+ low melting/boiling/density
+ cannot conduct heat/electricity
+ insoluble in water
