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Integrated SequencePhysics Chemistry Organic Biology
The Chemical Bond
Valence electrons and the octet rule
Covalent bonding
Bond Energy
Drawing a Lewis Electron Dot Diagram of a Molecule
Formal Charge
Molecular orbital theory
Orbital hybridization
Resonance
Valence shell electron pair repulsion theory
Electronegativity difference and polarity
Ionic bonding
Lattice Energy
Bonding in Metals

Web Resources

Chem1 Virtual Textbook - Bonding geometry - the shape of molecules
Comprehensive, clear, well-illustrated discussion of VSEPR.

Purdue University - Valence-Shell Electron-Pair Repulsion Theory (VSEPR)
Good tutorial on VSEPR. Includes a good summary table.



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Special points of emphasis

The Chemical Bond

Functional Groups in Organic Chemistry

Valence shell electron pair repulsion theory plays an important role in organic chemistry, in which stereochemical considerations are so important. For the MCAT, you definitely must securely understand which forms have a linear, trigonal planar, or tetrahedral geometry (including non-bonded electron pairs) among alkanes, alkenes, alkynes, the hydroxyl group, carbonyl, carboxyl, and amine. Almost every MCAT has a VSEPR dependent question, usually in the context of organic chemistry.



The WikiPremed MCAT Course is a free comprehensive course in the undergraduate level general sciences. Undergraduate level physics, chemistry, organic chemistry and biology are presented by this course as a unified whole within a spiraling curriculum.

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