Ionic compounds

• What are the two types of ions in ionic compounds?


  Positive and negative ions
• How are positive and negative ions arranged in ionic compounds?

  They alternate in a lattice structure
• Why do opposite ions attract in ionic compounds?

  Because opposites attract
• How are positive ions formed?

  By the loss of electrons
• How are negative ions formed?

  By the gain of electrons
• What is a characteristic of ionic compounds regarding melting points?

  They have a high melting point
• Why do ionic compounds have high melting points?

  Due to strong bonds in a lattice structure
• What happens to ionic compounds when they melt?

  They become a liquid with weak bonds
• Why do ionic compounds require more heat to melt?

  Because there are many strong ionic bonds
• What occurs when ionic compounds dissolve in water?

  They dissociate and separate
• Why can a solution of salt conduct electricity?

  Because ions can move freely
• Why can't solid ionic compounds conduct electricity?

  Because ions are fixed in position
• What are the properties of ionic compounds?

  • High melting points
  • Form a lattice structure
  • Conduct electricity when dissolved
  • Dissociate into ions in solution