Dative covalent bond
Dative covalent bond
Real World
In the ammonium ion (NH₄⁺), formed when ammonia reacts with hydrochloric acid, nitrogen donates both electrons of its lone pair to the H⁺ ion — a dative bond that makes all four N–H bonds identical.
Exam Focus
Distinguish dative from ordinary covalent bonds only by origin of electrons; in 'describe' questions, state that both electrons come from one atom.
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