1. Single Bonds: Carbon shares one electron with another atom, forming a single bond. This is the most common type of bond carbon forms, represented by a single line in structural formulas (e.g., C-H, C-C).
2. Double Bonds: Carbon shares two electrons with another atom, forming a double bond. This is represented by two lines in structural formulas (e.g., C=C, C=O).
3. Triple Bonds: Carbon shares three electrons with another atom, forming a triple bond. This is represented by three lines in structural formulas (e.g., C≡C, C≡N).
4. Coordinate Covalent Bonds: While not strictly a separate "type" of bond, carbon can also participate in coordinate covalent bonds. In this case, both electrons in the shared pair come from the same atom (usually a non-metal like oxygen or nitrogen).
It's important to note that carbon's ability to form these four types of bonds is a key reason for its versatility and the vast diversity of organic compounds.