Answer
A positive ion is an atom where one or more electrons have been removed, leaving the atom with an excess of protons. A negative ion is an atom with one or more extra electrons.
Work Step by Step
This is discussed on page 410.
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.