There are five classes of chemical bonds: ionic, covalent, metallic, molecular (

Question

There are five classes of chemical bonds: ionic, covalent, metallic, molecular (often termed van der Waals) and hydrogen (i.e., dipole). Here are a few examples. Compounds like NaCl exhibit ionic bonding. Intrinsic semiconductors like Si, Ge, and diamond exhibit covalent bonding. Metals like Al, Cu, and Fe exhibit metallic bonding. Polymers such as polyethylene exhibit van der Waals bonds between molecular chains. Solid water (aka ice) exhibits hydrogen bonds. Which one of the following descriptions accurately describes the ionic bond? a. None of the above. b. Transfer (i.e., donation) of valence electrons from electropositive to electronegative atoms. c. Sharing of valence electrons with opposite spins among two or more atoms. d. Weak electrostatic attractions between positively and negatively charged regions. e. The sharing of a sea of decoupled valence electrons by electropositive atoms.

Explanation / Answer

Answer: b . Transfer of valence electrons from electropositive to electronegative atoms

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