Magnesium oxide is formed up of the ions Mg2+ and O2-, which are joined by an ionic connection. However, based on the valency, we can conclude that the net charge in the molecules is zero and balanced, with one magnesium and one oxygen atom. As a result, the formula for Magnesium Oxide is MgO. Students can learn more about Magnesium and its chemical properties when reacting with different elements at Vedantu’s official website. The student can also explore through the list of most important questions that are prepared for the students who have less time and need to score good marks.