QUESTION IMAGE
Question
match the molecular shapes with the lewis structures. choices 11 bent li trigonal pyramidal 11 trigonal planar 11 tetrahedral 11 linear
Brief Explanations
- For the first molecule (CH₄ - methane), the central carbon atom has 4 bonding pairs and no lone pairs. According to VSEPR theory, 4 bonding pairs arrange in a tetrahedral geometry.
- For the second molecule (NH₃ - ammonia), the central nitrogen atom has 3 bonding pairs and 1 lone pair. The 3 bonding pairs and 1 lone pair around the central atom result in a trigonal pyramidal shape (the lone pair affects the molecular geometry to give this non - planar, pyramidal shape).
- For the third molecule (BCl₃ - boron trichloride), the central boron atom has 3 bonding pairs and no lone pairs. 3 bonding pairs around a central atom arrange in a trigonal planar geometry according to VSEPR theory.
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- First Lewis structure (CH₄): tetrahedral
- Second Lewis structure (NH₃): trigonal pyramidal
- Third Lewis structure (BCl₃): trigonal planar