Answer
$Mg^{+2}$ = (2, 8)
Work Step by Step
Magnesium is a member of group 2A. In its ground state it has (2, 8, 2) electrons. To complete octet, it lose 2 electrons to form $Mg^{+2}$ ion.
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 6 - Section 6.8 - Attractive Forces in Compounds - Additional Questions and Problems - Page 205: 6.87b
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