INTOCHEMISTRY / MOLECULAR BONDING
Molecular Structure Learning Center
Start with an electron budget, then progress through formal charge, resonance, and three-dimensional shapes.
Lewis Structures: From Electrons to Bonds
Count valence electrons, choose connectivity, and place bonds and lone pairs without inventing electrons.
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Formal Charge: Audit a Lewis Structure
Assign bookkeeping charges correctly and check whether a Lewis structure is plausible.
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Resonance: One Structure, Multiple Contributors
Represent electron delocalization without moving atomic nuclei or treating contributors as separate molecules.
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VSEPR, Geometry & Molecular Polarity
Use central-atom electron domains and lone pairs to predict 3D shapes and bond-dipole cancellation.
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