Chemistry and Chemical Reactivity (9th Edition)

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 281c: 48


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In terms of electronic configuration, $Ca^{2+}=Cl^-=Ar$, the difference being how much harder it is to remove an electron from a positively charged ion vs from a negatively charged one. $Cl^-\lt Cl\lt Ca^{2+}$
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