Chemistry - CHEMICAL BONDING Question with Solution | TestHub

In the formation of an ammonium ion (NH₄⁺), a chemical bond is formed between an ammonia molecule (NH₃) and a proton (H⁺). The nitrogen atom in NH₃ possesses a lone pair of electrons, whereas the proton (H⁺) has an empty valence shell. Nitrogen donates this pair of electrons to the empty orbital of the proton to establish a coordinate (dative) bond. Since both shared electrons are contributed solely by the nitrogen atom, it represents a one-sided sharing of electrons. Therefore, Option (D) is the correct answer.