melting point trend of group 2
decreases
Reaction of group 2 metal with water
form metal hydroxides
e.g. Mg + 2H2O ———-> Mg(OH)2 + H2
Reactivity trend down group 2
Increases because ionisation energies decrease down group
solubility of salts down the group
solubility of hydroxides increases down group
solubility of sulfate decrease down group