Answer
$I_2$
Work Step by Step
$I_2$ has the lowest bond enthalpy, which is correlated with having the weakest bond.
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 4 - Energy and Chemical Reactions - Questions for Review and Thought - Topical Questions - Page 189d: 60
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