Difference Between Covalent and Noncovalent Bonds
The key difference between covalent and noncovalent bonds is that covalent bonds form when two atoms share their electrons with each other whereas noncovalent bonds form either by completely exchanging electrons between two atoms or by not exchanging any electron.
There are four major types of chemical bonds: covalent bonds,ionic bonds, hydrogen bonds, and Van der Waals interactions. When we categorize chemical bonds as covalent and noncovalent bonds, ionic, hydrogen bonds, and Van der Waals interactions fall under the category of noncovalent bonds.