Magnesium is a chemical element, and magnesium oxide is an ionic compound, which is the main difference between magnesium and magnesium oxide. It is a beneficial metallic element due to its strength compared to the lightweight.
Magnesium is a chemical element, which has the symbol Mg. Magnesium oxide is a chemical element, which has the emblem of MgO because it is an ionic compound. The melting point of magnesium is around 650 degrees Celsius. The melting point of magnesium oxide is about 2800 degrees Celsius.