Which statement correctly identifies the strongest type of atomic bond and a related characteristic of diamond?

Which statement correctly identifies the strongest type of atomic bond and a related characteristic of diamond?

• A. Ionic bonds are the strongest of all atomic bonds.
• B. Covalent bonds are the strongest of all atomic bonds.
• C. Metallic bonds are the strongest of all atomic bonds.
• D. Hydrogen bonds are the strongest of all atomic bonds.

Answer: (B)

Covalent bonds are the strongest type of atomic bond, formed when atoms share electron pairs. In diamond, each carbon forms four covalent bonds with neighboring carbons, creating a continuous three‑dimensional network. This rigid network resists scratching and deformation, giving diamond its exceptional hardness and very high melting point. Hydrogen bonds are weaker intermolecular attractions, metallic bonds provide different properties through a sea of delocalized electrons, and ionic bonds rely on electron transfer between ions; none of these create the same strong, directional, all‑encompassing network that diamond's covalent bonds establish.

Covalent bonds are the strongest type of atomic bond, formed when atoms share electron pairs. In diamond, each carbon forms four covalent bonds with neighboring carbons, creating a continuous three‑dimensional network. This rigid network resists scratching and deformation, giving diamond its exceptional hardness and very high melting point. Hydrogen bonds are weaker intermolecular attractions, metallic bonds provide different properties through a sea of delocalized electrons, and ionic bonds rely on electron transfer between ions; none of these create the same strong, directional, all‑encompassing network that diamond's covalent bonds establish.