2 questions · 2 marks · ≈ 2 min
Which statement about ionic compounds is correct?
Choose your answer
They are good electrical conductors when dissolved in water.
They are good electrical conductors when molten and when solid.
They are formed when atoms share electrons.
They have low melting points.
Which statement describes the giant lattice structure of sodium chloride?
Choose your answer
It is a random arrangement of alternating positive and negative ions.
It is a random arrangement of alternating sodium and chlorine atoms.
It is a regular arrangement of alternating positive and negative ions.
It is a regular arrangement of alternating sodium and chlorine atoms.