Answer
Calcium
Work Step by Step
We know that group 2 elements generally become cations with a 2+ charge. Since it specifies that the element is in the 4th period, we see that Calcium is the correct answer.
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 5 - Electron Configurations and the Periodic Table - Problem Solving Practice 5.9 - Page 223: b
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