Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 5 - Electron Configurations and the Periodic Table - Questions for Review and Thought - Topical Questions - Page 240d: 104d



Work Step by Step

Ground state electronic configuration of Ruthenium is: $[Kr] 4d^{7} 5s^{1}$ It loses one electron from 5s and one electron from 4d subshell to attain a charge of +2. Electronic configuration of $Ru^{2+}$ ion is: $[Kr] 4d^{6}$
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