## Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning

# Chapter 5 - Electron Configurations and the Periodic Table - Questions for Review and Thought - Topical Questions - Page 240b,: 57a

#### Answer

Electronic configuration of Strontium is: $1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 5s^{2}$

#### Work Step by Step

Strontium is a member of G-IIA and period 5. Hence its outermost shell is 5s and it contains 2 electrons.

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