Molecular Geometry (Simplified) Practice Problems

Based on their Lewis structures, explain why CCl₄ and NCl₃ have different molecular shapes.

Determine the shape of the molecule that is described below:

The central atom of a molecule has four electron groups and two bonded atoms.

The reaction of arsine, AsH₃, with acid yields the arsonium ion, AsH₄⁺. Determine the molecular geometry of this ion.

Consider the compound tellurium trioxide (TeO₃) and the tellurite ion (TeO₃^2–). Provide the Lewis dot structures of each and determine their molecular geometries. 

What are the molecular shapes of the following molecules?

XeF₂, H₂O, BCl₃, CH₄

All of the following molecules are non-linear except: