Answer
a) 16
b) 13
c) 14
d) 14
e) 15
Work Step by Step
Groups refer to the numbering of columns of the periodic table from left to right.
See ptable.com for a labeled periodic table, and look at the top of the columns for column numbers.
Introductory Chemistry (5th Edition)
by Tro, Nivaldo J.
Published by
Pearson
ISBN 10:
032191029X
ISBN 13:
978-0-32191-029-5
Chapter 4 - Atoms and Elements - Exercises - Problems - Page 122: 63
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