Answer
CaCl2
Work Step by Step
Calcium has a total of 2 valence electrons and chlorine, a nonmetal has 7 valence electrons. Therefore, there must be 2 chlorine atoms to receive those 2 extra valence electrons.
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.