Work Step by Step
Magnesium is located in Group 2A. Therefore it needs to lose two electrons in order to achieve a noble gas electron configuration. Thus it is expected to form a $2+$ charge.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.