Kaplan Nursing Entrance Practice Exam

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Which type of bond involves the transfer of electrons?

Covalent bond
Ionic bond
Metallic bond
Hydrogen bond

The correct answer is: Ionic bond

The correct answer is ionic bond because it is characterized by the transfer of electrons from one atom to another. In ionic bonding, one atom, typically a metal, donates one or more of its electrons to another atom, usually a non-metal. This results in the formation of positively and negatively charged ions. The electrostatic attraction between these oppositely charged ions holds them together in an ionic compound. Covalent bonds involve the sharing of electrons between atoms, rather than transferring them. Metallic bonds involve a sea of shared electrons among a lattice of metal atoms, where electrons are not associated with any specific atom. Hydrogen bonds are weak attractions that occur between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom. Therefore, the defining characteristic of an ionic bond is the transfer of electrons, making it the correct choice for this question.