## Chemistry: A Molecular Approach (3rd Edition)

Electron geometry: tetrahedral Molecular geometry: bent Idealized bond angle: $109.5^{\circ}$ Deviation from idealized bond angle : yes
$SBr_3$ 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.