IGCSE ionic bonding

Which of the following substances will have ionic bonding?

• copper chloride
• iron
• brass
• sulfur dioxide

Which of the following is NOT true of ionic compounds?

• Metal ions have a + charge
• Non-metal ions have a - charge
• They conduct electricity when they are solid
• They are arranged in a giant lattice

Which of the following is true about the oxide ion?

• Formed by oxygen atoms losing 2 electrons
• Oxygen ions have an empty second shell
• Exist in pairs
• Have a 2- charge

Which of the following is true about the sodium ion?

• Has a 2,8,1 electron arrangement
• Have a 1+ charge
• Formed by sodium atoms gaining 1 electron
• Sodium ions have an empty second shell

What is the formula of aluminium oxide?

• Al₃O₂
• AlO₃
• Al₂O
• Al₂O₃

Tags

NGSS.HS-PS1-7

What is the formula of gallium sulfate?

• Ga₂(SO₄)₃
• Ga₃(SO₄)₂
• Ga₃S₂
• Ga₂S₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which compound has the highest boiling point?

• NaCl
• CaCl₂
• CaO
• K₂O

Why do ionic compounds conduct electricity when molten or in solution?

• The electrons are free to move and carry charge
• The ions are free to move and carry charge
• The ions are in fixed positions
• Ionic compounds have delocalised electrons