4.14 Video: Ionic Crystal Lattices

What is the primary structural form of ionic compounds?

• Single molecules

• Giant ionic lattices

• Covalent networks

• Metallic bonds

What type of force holds the ions together in a giant ionic lattice?

• Covalent bonds

• Metallic bonds

• Electrostatic attractions

• Hydrogen bonds

Why do ionic compounds typically have very high melting points?

• They are very dense

• They have weak intermolecular forces

• A lot of energy is needed to overcome strong electrostatic attractions

• They are good conductors of electricity

What characteristic explains why ionic compounds are brittle?

• Their small size

• The repulsion between like-charged ions when the lattice is disturbed

• Their ability to dissolve in water

• Their metallic nature

Which was NOT listed in the video as a characteristic of ionic crystal lattices?

• They are repeating positive and negative ions held together by electrostatic attractions

• The have high melting points

• They are brittle and shatter

• They conduct electricity