Exercise 2 | Prediction of Molecular Geometries

Chapter 8 - Prediction of Molecular Geometries

What is the electron pair geometry and the molecular shape of the following molecules:

BrF₃, SO₃, IF₂^-, SF₂and O₃ ?

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Solution

Electron Pair Geometry = EPG; Molecular Shape = MS

BrF₃ ⇒ AX₃E₂ ⇒ EPG = trigonal bipyramidal, MS = T-shaped

SO₃ ⇒ AX₃ ⇒ EPG = trigonal planar, MS = trigonal planar

IF₂^- ⇒ AX₂E₃ ⇒ EPG = trigonal bipyramidal, MS = linear

SF₂ ⇒ AX₂E₂ ⇒ EPG = tetrahedral, MS = bent

O₃ ⇒ AX₂E ⇒ EPG = trigonal planar, MS = bent