Answer
The correct answer is (c)
Work Step by Step
As we can see, there is a sudden increase in the magnitude of $IE_5$. This means that there are 4 valence electrons. Hence, the element is $Si$.
Chemistry: Molecular Approach (4th Edition)
by Tro, Nivaldo J.
Published by
Pearson
ISBN 10:
0134112830
ISBN 13:
978-0-13411-283-1
Chapter 8 - Self-Assessment Quiz - Page 373: Q13
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