Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 8 - Sections 8.1-8.9 - Exercises - Problems by Topic - Page 376: 65c

Answer

$[Kr]5s^{2}$ $[Kr]$

Work Step by Step

Write the electron configuration for an uncharged Sr atom. Two electrons must be removed to Sr to form the ion $Sr^{2+}$. Remove these electrons to its energy level and change the corresponding electron configuration.
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