Concept explainers
(a)
Interpretation:
Lewis structure has to be completed from the skeletal structure given below and the bond angles around the central atoms in the given structure have to be predicted using the VSEPR model.
Concept Introduction:
Lewis structure is used for predicting the shape of molecules. From the steric number obtained in a Lewis structure, the molecular geometry can be predicted. VSEPR model can predict the shape of molecules considering their Lewis structure. Certain rules has to be followed in for the VSEPR model.
- The molecule will have a shape where there is minimal electrostatic repulsion between the valence‑shell electron pairs.
- The forces of repulsion between two lone pairs of electrons will be higher than the repulsion between lone pair and bond pair of electrons. This in turn will be higher than the bond pair‑bond pair of electrons.
(b)
Interpretation:
Lewis structure has to be completed from the skeletal structure given below and the bond angles around the central atoms in the given structure have to be predicted using the VSEPR model.
Concept Introduction:
Refer part (a).
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Chemistry: Principles and Practice
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