Q95E - Chemistry (OpenStax)

Question

Identify the electron pair geometry and the molecular structure of each of the following molecules:

1. \({\rm{CNIO}}\) (N is the central atom)
2. \({\rm{C}}{{\rm{S}}_{\rm{2}}}\)
3. \({\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{CO}}\)(C is the central atom)
4. \({\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{SO}}\)(S is the central atom)
5. \({\rm{S}}{{\rm{O}}_{\rm{2}}}{\rm{\;}}{{\rm{F}}_{\rm{2}}}\)(S is the central atom)
6. \({\rm{Xe}}{{\rm{O}}_{\rm{2}}}{\rm{\;}}{{\rm{F}}_{\rm{2}}}\)(Xe is the central atom)
7. \({\rm{ClOF}}_{\rm{2}}^{\rm{ + }}\)(Cl is the central atom)

Step-by-Step Solution

Answer

Electron-pair geometry considers the placement of all electrons. Molecular structure considers only the bonding-pair geometry.

Step 1: Concept Introduction

The three-dimensional arrangement of atoms in a molecule is predicted by the VSEPR theory. It takes the shape of minimum repulsion.

Step 2: Find the electron pair geometry and the molecular structure

Therefore, the arrangement of all electrons is taken into account by electron-pair geometry. Only the bonding-pair geometry is taken into account in molecular structure calculations.