Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 10 - Sections 10.1-10.8 - Exercises - Problems by Topic: 35b

Answer

Electron geometry: tetrahedral Molecular geometry: bent Idealized bond angle: $109.5^{\circ}$ Deviation from idealized bond angle : yes

Work Step by Step

$SBr_3$ has 2 covalent bonds and two lone pairs of the S atom. Its electron geometry is tetrahedral. Its molecular geometry is bent since S atom is bonded to 2 Br atoms and has 2 lone pairs. Its idealized bond angle is that of the tetrahedral geometry, $109.5^{\circ}$. But the presence of the lone pairs causes deviation from the idealized bond angle.
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