Ionic Bonding and Metallic Bonding
Ionic bonding occurs between metal and non-metal elements, forming compounds like sodium chloride. These compounds create a lattice structure of alternating metal and non-metal ions held together by electrostatic forces.
Definition: An ionic bond is the electrostatic force of attraction between a positively charged metal ion and a negatively charged non-metal ion.
Ionic compounds lattice structure is characterized by its ability to dissolve easily in water. When dissolved, the lattice breaks apart, and water molecules surround the separated ions.
Metallic bonding, on the other hand, occurs in pure metals and alloys. In metallic structures, the outer shell electrons of metal atoms are free to move throughout the structure.
Definition: A metallic bond is the force of attraction between free-moving ordelocalized electrons and positive metal ions in a metal structure.
Properties of metallic bonds include:
- Strong bonds leading to stable structures
- High melting and boiling points
- Excellent conductivity of electricity and heat due to the movement of delocalized electrons
Highlight: The delocalized electrons in metallic bonds allow metals to conduct electricity and heat efficiently, a property not shared by ionic or covalent network structures.