If an atom of chlorine (CI) were to ionize, it would
electron(s).

Explanation:

As per being a Group 7 element, it would gain one electron, which changes it's charge to 1-. It is therefore negatively charged, having a full outer shell of 8, having its electronic structure to be at 2,8,8.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.