Answer
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Work Step by Step
Calcium is from group 2, so to achieve a 3+ charge, an electron would have to be removed from an inner shell, breaking a stable noble gas configuration.
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 7 The Structure of Atoms and Periodic Trends - Study Questions - Page 281f: 80
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