Hydrogen bonding is a strong type of intermolecular force that occurs when a hydrogen atom, bonded to a highly electronegative atom such as oxygen, nitrogen, or fluorine, is attracted to another electronegative atom in a different molecule.
Related terms
Intermolecular forces: These forces are attractions between molecules and include hydrogen bonding, dipole-dipole interactions, and London dispersion forces.
Electronegativity: It refers to an atom's ability to attract electrons towards itself in a chemical bond.
Oxygen: An element with high electronegativity commonly involved in hydrogen bonding.