2.4.7 Structure of Ionic compounds

What type of structure do ionic compounds have?

• Giant covalent

• Lattice

• Diatomic

• Crystal

Which is NOT a property of ionic compounds?

• High melting point

• High boiling point

• Poor electrical conductivity when solid

• Good electrical conductivity when solid

What explains the strength of the lattice structure of ionic compounds?

• Strong electrostatic forces of attraction between oppositely charged ions

• Weak electrostatic forces of attraction between oppositely charged ions

• Strong electrostatic forces of attraction between similarly charged ions

• Weak electrostatic forces of attraction between similarly charged ions

Ionic compounds form...

Draw the structure of an ionic compound

Which words best describe the properties of ionic compounds?

• Hard

  Brittle

  Insoluble

• Soft

  Flexible

  Soluble

• Hard

  Brittle

  Soluble

• Inert

  Flexible

  Insoluble

Which is the best answer to the question "why do ionic compounds have high melting and boiling points?"

• Ionic compounds have ionic bonds between the ions so

  Breaking these bonds is hard

• Ionic lattices have many strong ionic bonds between the cations and anions

  Breaking these bonds requires lots of energy

• Ionic compounds have a multitude of relatively weak ionic bonds between the alternatively charged ions

• The ionic lattice is strong and breaking the lattice structure is hard to do because it is strong and ionic

What is "An ordered arrangement of alternating positive and negative ions"?