Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 5 - Electrons in Atoms - 5 Assessment - Page 152: 41

Answer

1s2 2s2 2p6 3s2

Work Step by Step

Atomic number 12 is magnesium. Use the periodic table as a guide in writing down its electron configuration.
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