Group Two Metals

Trends that are needed to know:

1. The solubilities of group two Hydroxides increase as you go up the group (Radium to Beryllium)
2. The solubilities of Group two Sulphate decrease as you go down the group (Beryllium to Radium)
   

Group two are all metallic and therefore, have high melting points. The sea of delocalised electrons are further from the nuclei as you go down the group, and therefore, the strength of the bond decreases and the melting point decreases.