It is likely an alkali earth metal
Work Step by Step
The third ionization energy has a much larger energy jump. This can be assumed to be the next period thus the element has two valence electrons so it is an alkali earth metal
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.