Which type of chemical bond forms between elements with the greatest difference in electronegativity?

• A. Covalent bond
• B. Ionic bond
• C. Hydrogen bond
• D. Metallic bond

Answer: (B)

Verified step by step guidance

1. Understand that electronegativity is a measure of an atom's ability to attract electrons in a chemical bond.
2. Recall that when two atoms have a small difference in electronegativity, they tend to share electrons, forming a covalent bond.
3. Recognize that when the difference in electronegativity between two atoms is very large, one atom tends to completely transfer electrons to the other, resulting in an ionic bond.
4. Note that hydrogen bonds are not primary bonds between atoms but rather intermolecular attractions involving hydrogen and electronegative atoms like oxygen or nitrogen.
5. Metallic bonds occur between metal atoms where electrons are delocalized, which is unrelated to electronegativity differences between different elements.