Physical Properties of Group 2 Elements

Physical Properties of Group 2 Elements

1. Electron Arrangments

   • Highest 2 electrons in 's' subshell
   • Down the group, highest energy electrons are held further out from nucleus
   • Forms +2 ions

2. Atomic Radius

   • Increase in size going down the group

3. Melting Point

   • Group 2 elements are all metals so they have high melting points
   • Magnesium is an anomaly, lowest melting point of Group2

4. Ionisation Energies

   • Group II elements forms +2 ions in all reactions
   • Both 1st and 2nd ionisation energies decrease down the group