Resonance effect
Inductive effect
Electromeric effect
This interaction is a type of conjugation that leads to resonance, where the π electrons and lone pair electrons interact over adjacent atoms, stabilizing the molecule through delocalization of electrons.
So, the correct answer is : Resonance effect
Such a group of atoms is called a molecule. Obviously, there must be some force that holds these constituent atoms together in the molecules. The attractive force which holds various constituents (atoms, ions, etc.) together in different chemical species is called a chemical bond.
There are 4 types of chemical bonds which are formed by atoms or molecules to yield compounds.