Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises - Page 77: 2.69a

Answer

Cation Name: Calcium Cation Charge: 2+ Anion Name: Oxygen Anion Charge: 2-

Work Step by Step

Calcium needs to lose 2 electrons to have a full outer shell, therefore having a 2+ charge. Oxygen needs to gain 2 electrons to have a full outer shell, therefore having a 2- charge.
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