Metallic Bonding

• All metal elements have metallic bonding.

• Metallic bond - regular arrangement of positive metal ions surrounded by a sea of free outershell electrons

(free = free to move (delocalised))

• Force of attraction between positive metal ion & sea of free outershell electrons is the metallic bond.

• Sea of free outershell electrons act as a glue, holding the ions together.

Strength of metallic bond is controlled by:

• no. electrons in sea of free outershell electrons
• charge of ion
• …