ChemistryCode 5070
Ion and ionic bonds
What this topic asks you to be able to do
- Describe how positive ions (cations) and negative ions (anions) are formed
- Describe how ionic compounds are built as a giant lattice structure, with positive and negative ions alternating in a regular arrangement
- State that the strong electrostatic attraction holding oppositely charged ions together is called an ionic bond
- Describe how ionic bonds form between metal ions and non-metal ions, including showing this bonding with dot-and-cross diagrams
- Describe these properties of ionic compounds and use their structure and bonding to explain each one: (a) high melting and boiling points (b) good electrical conductivity when molten or aqueous, but poor conductivity as a solid