Lewis Structures and Molecular Geometry Comprehensive Formula Sheet

Linear Electron Geometry (2 Electron Groups)

• Carbon Dioxide ($CO_2$)     * Electron Geometry: Linear     * Molecular Geometry: Linear     * Bond Angles: $180^\circ$     * Polarity: Nonpolar     * Hybridization: $sp$     * Center Atom Bonding Groups: $2$     * Lone Pairs: $0$     * Total Electron Groups: $2$

Trigonal Planar Electron Geometry (3 Electron Groups)

• Boron Trifluoride ($BF_3$)     * Electron Geometry: Trigonal Planar     * Molecular Geometry: Trigonal Planar     * Bond Angles: $120^\circ$     * Polarity: Nonpolar     * Hybridization: $sp^2$     * Center Atom Bonding Groups: $3$     * Lone Pairs: $0$     * Total Electron Groups: $3$

• Sulfur Dioxide ($SO_2$)     * Electron Geometry: Trigonal Planar     * Molecular Geometry: Bent     * Bond Angles: $< 120^\circ$     * Polarity: Polar     * Hybridization: $sp^2$     * Center Atom Bonding Groups: $2$     * Lone Pairs: $1$     * Total Electron Groups: $3$

Tetrahedral Electron Geometry (4 Electron Groups)

• Methane ($CH_4$)     * Electron Geometry: Tetrahedral     * Molecular Geometry: Tetrahedral     * Bond Angles: $109.5^\circ$     * Polarity: Nonpolar     * Hybridization: $sp^3$     * Center Atom Bonding Groups: $4$     * Lone Pairs: $0$     * Total Electron Groups: $4$

• Ammonia ($NH_3$)     * Electron Geometry: Tetrahedral     * Molecular Geometry: Trigonal Pyramidal     * Bond Angles: $107^\circ$     * Polarity: Polar     * Hybridization: $sp^3$     * Center Atom Bonding Groups: $3$     * Lone Pairs: $1$     * Total Electron Groups: $4$

• Water ($H_2O$)     * Electron Geometry: Tetrahedral     * Molecular Geometry: Bent     * Bond Angles: $104.5^\circ$     * Polarity: Polar     * Hybridization: $sp^3$     * Center Atom Bonding Groups: $2$     * Lone Pairs: $2$     * Total Electron Groups: $4$

Trigonal Bipyramidal Electron Geometry (5 Electron Groups)

• Phosphorus Pentachloride ($PCl_5$)     * Electron Geometry: Trigonal Bipyramidal     * Molecular Geometry: Trigonal Bipyramidal     * Bond Angles: $120^\circ$ and $90^\circ$     * Polarity: Nonpolar     * Hybridization: $dsp^3$     * Center Atom Bonding Groups: $5$     * Lone Pairs: $0$     * Total Electron Groups: $5$

• Sulfur Tetrafluoride ($SF_4$)     * Electron Geometry: Trigonal Bipyramidal     * Molecular Geometry: Seesaw     * Bond Angles: $< 120^\circ$ and $< 90^\circ$     * Polarity: Polar     * Hybridization: $dsp^3$     * Center Atom Bonding Groups: $4$     * Lone Pairs: $1$     * Total Electron Groups: $5$

• Iodine Trifluoride ($IF_3$)     * Electron Geometry: Trigonal Bipyramidal     * Molecular Geometry: T-Shaped     * Bond Angles: $< 90^\circ$     * Polarity: Polar     * Hybridization: $dsp^3$     * Center Atom Bonding Groups: $3$     * Lone Pairs: $2$     * Total Electron Groups: $5$

• Xenon Difluoride ($XeF_2$)     * Electron Geometry: Trigonal Bipyramidal     * Molecular Geometry: Linear     * Bond Angles: $180^\circ$     * Polarity: Nonpolar     * Hybridization: $dsp^3$     * Center Atom Bonding Groups: $2$     * Lone Pairs: $3$     * Total Electron Groups: $5$

Octahedral Electron Geometry (6 Electron Groups)

• Sulfur Hexafluoride ($SF_6$)     * Electron Geometry: Octahedral     * Molecular Geometry: Octahedral     * Bond Angles: $90^\circ$     * Polarity: Nonpolar     * Hybridization: $d^2sp^3$     * Center Atom Bonding Groups: $6$     * Lone Pairs: $0$     * Total Electron Groups: $6$

• Iodine Pentafluoride ($IF_5$)     * Electron Geometry: Octahedral     * Molecular Geometry: Square Pyramidal     * Bond Angles: $< 90^\circ$     * Polarity: Polar     * Hybridization: $d^2sp^3$     * Center Atom Bonding Groups: $5$     * Lone Pairs: $1$     * Total Electron Groups: $6$

• Xenon Tetrafluoride ($XeF_4$)     * Electron Geometry: Octahedral     * Molecular Geometry: Square Planar     * Bond Angles: $90^\circ$     * Polarity: Nonpolar     * Hybridization: $d^2sp^3$     * Center Atom Bonding Groups: $4$     * Lone Pairs: $2$     * Total Electron Groups: $6$