Answer
Group No. 2, Valence Electrons = 2
Work Step by Step
From periodic table, we notice that Magnesium is located in Group No. 2. For main group elements, Group No. gives no. of valence electrons. Hence valence electrons are 2.
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)
by Timberlake, Karen C.
Published by
Prentice Hall
ISBN 10:
0321908449
ISBN 13:
978-0-32190-844-5
Chapter 4 - Section 4.7 - Trends in Periodic Properties - Questions and Problems - Page 125: 4.47a
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