Which chemical bond results in a complete transfer of electrons?

An ionic bond forms when one atom completely transfers one or more electrons to another atom. This typically occurs between a metal and a nonmetal, resulting in the formation of positively and negatively charged ions that attract each other. In contrast, covalent bonds involve sharing of electrons. Non-polar covalent bonds share electrons equally, while polar covalent bonds share electrons unequally. Hydrogen bonds are weak attractions between molecules, not true electron-sharing or transfer bonds. The NEX Science exam frequently assesses basic chemistry principles related to bonding and molecular interactions. Because only ionic bonds involve a complete transfer of electrons, option D is correct.

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