Answer
The molecular structures range from linear to trigonal bipyramidal and octahedral. The bond angles vary accordingly, and the polarity of the molecules depends on the symmetry and distribution of the electron pairs around the central atom.
Work Step by Step
Let's go through each of the 12 compounds and analyze their Lewis structures, molecular structures, bond angles, and polarity.
1. $CO_2$ (Carbon Dioxide):
- Lewis Structure: O=C=O
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Nonpolar
2. $SO_2$ (Sulfur Dioxide):
- Lewis Structure: O=S=O
- Molecular Structure: Bent
- Bond Angle: Approximately 120°
- Polarity: Polar
3. KrF (Krypton Fluoride):
- Lewis Structure: F-Kr-F
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Nonpolar
4. SO (Sulfur Monoxide):
- Lewis Structure: O=S
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Polar
5. NF (Nitrogen Fluoride):
- Lewis Structure: F-N
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Polar
6. IF (Iodine Monofluoride):
- Lewis Structure: F-I
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Polar
7. CF (Carbon Monofluoride):
- Lewis Structure: F-C
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Polar
8. SF4 (Sulfur Tetrafluoride):
- Lewis Structure: F-S-F
- F
- Molecular Structure: Trigonal Bipyramidal
- Bond Angles: Axial-Equatorial: 90°, Equatorial-Equatorial: 120°
- Polarity: Polar
9. XeF (Xenon Monofluoride):
- Lewis Structure: F-Xe
- Molecular Structure: Linear
- Bond Angle: 180°
- Polarity: Polar
10. PF3 (Phosphorus Trifluoride):
- Lewis Structure: F-P-F
- F
- Molecular Structure: Trigonal Pyramidal
- Bond Angles: Approximately 96°
- Polarity: Polar
11. IF5 (Iodine Pentafluoride):
- Lewis Structure: F-I-F
- F F
- F
- Molecular Structure: Trigonal Bipyramidal
- Bond Angles: Axial-Equatorial: 90°, Equatorial-Equatorial: 120°
- Polarity: Polar
12. $SCl_6$ (Sulfur Hexachloride):
- Lewis Structure: Cl-S-Cl
- Cl Cl
- Cl Cl
- Molecular Structure: Octahedral
- Bond Angles: 90°
- Polarity: Nonpolar
