Melting point of Magnesium oxide
Why is the melting point of magnesium oxide higher than that of sodium oxide? (3marks)
Suggested resposponses
Both sodium oxide and magnesium oxide have a giant ionic structure; However, the melting point of magnesium oxide is higher because the electrostatic forces of attraction between magnesium ions and oxide ions are stronger; This is due to the fact that the magnesium ion has a charge of +2 and...
