Answer
Electronegativities decrease as we move down a group.
Work Step by Step
A we move down the group, the effective nuclear charge decreases. This in turn reduces the electronegativity.
Chemistry: The Central Science (13th Edition)
by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.
Published by
Prentice Hall
ISBN 10:
0321910419
ISBN 13:
978-0-32191-041-7
Chapter 8 - Basic Concepts of Chemical Bonding - Exercises - Page 335: 8.38b
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