A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compound. The strength of chemical bonds varies considerably; based on the strength of chemical bonds within the chemical compound, the chemical bond is broadly classified into two categories. They are Intramolecular bonds and Intermolecular bonds.
The intramolecular forces are the chemical bonds that hold atoms together within a compound molecule. They are also known as the "strong bonds" or "primary bonds" such as covalent bonds, ionic bonds and metallic bonds.
The intermolecular forces are the forces which mediate interaction between molecules which cause them to be attracted or repulsed by each other. Intermolecular forces are weak relative to intramolecular forces. Hence the intermolecular forces are known as the "weak bonds" or "secondary bonds" such as dipole-dipole interaction, the London dispersion force and hydrogen bonding.
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