Toluene · C₇H₈

C₇H₈ Lewis Structure

A methyl substituent replaces one benzene hydrogen while the six-carbon π system remains delocalized.

C₇H₈
C₆H₅—CH₃
Reviewed stored connectivity; detailed electron placement is explained below
Total valence electrons36
Reviewed connectivityC₆H₅—CH₃
GeometryPlanar aromatic ring; tetrahedral methyl carbon
Support levelReviewed guide

Toluene overview

The stored Lewis connectivity is C₆H₅—CH₃. A methyl substituent replaces one benzene hydrogen while the six-carbon π system remains delocalized.

How to draw C₇H₈

  1. Count 36 valence electrons. Include charge adjustments before drawing.
  2. Use the reviewed connectivity C₆H₅—CH₃. Do not infer a different isomer from the formula alone.
  3. Place the required single, double or multiple bonds. Keep a running electron total.
  4. Complete terminal valence shells and add lone pairs or formal charges. A methyl substituent replaces one benzene hydrogen while the six-carbon π system remains delocalized.
  5. Verify the total electron count and geometry. The reviewed geometry is Planar aromatic ring; tetrahedral methyl carbon.

Why this example matters

A methyl substituent replaces one benzene hydrogen while the six-carbon π system remains delocalized.

Scope and model limits

The page uses a Kekulé-style contributor plus an aromatic delocalization note; the ring does not alternate between fixed single and double bonds.

Common mistakes

  • Breaking the aromatic ring into a cyclohexane structure
  • Giving the methyl carbon a double bond to the ring
  • Forgetting the formula's eight hydrogens

Last reviewed: 2026-07-16. Educational reference only; verify graded work with course materials.