Multiple Choice
What is the molecular geometry of the XeF_4 molecule?
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12. Molecular Shapes & Valence Bond Theory
Molecular Geometry
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Which three-dimensional molecular geometry does CO_2 exhibit?
A
Linear
B
Trigonal planar
C
Bent
D
Tetrahedral
Verified step by step guidance1
Identify the central atom in the molecule CO_2, which is carbon (C).
Determine the number of regions of electron density (bonding and lone pairs) around the central atom. In CO_2, carbon forms two double bonds with oxygen atoms and has no lone pairs.
Use the VSEPR (Valence Shell Electron Pair Repulsion) theory to predict the molecular geometry. Since there are two regions of electron density and no lone pairs, the electron pairs will arrange themselves to be as far apart as possible.
According to VSEPR theory, two regions of electron density around the central atom result in a linear geometry with a bond angle of approximately 180 degrees.
Conclude that the three-dimensional molecular geometry of CO_2 is linear.
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