Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 9 Bonding and Molecular Structure: Orbital Hybridization and Molecular Orbitals - Study Questions - Page 369a: 20


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Work Step by Step

$Li_2^+$ has one valence electron and $Li_2^-$ has three, so the configuration is respectively: $[core]\ (\sigma_{2s})^1$ $[core]\ (\sigma_{2s})^2\ (\sigma_{2s}^*)^1$ Since $B.O.=(N.\ Bonding -N.\ Antibonding)/2$ These ions have a bond order of 0.5 thus having a weaker bond than $Li_2$ with a bond order of 1.
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