Which statement best describes the structure of covalent network solids?

• A. Atoms are packed closely together with metallic bonding.
• B. Molecules are held together by weak van der Waals forces.
• C. Ions are arranged in a lattice and held together by electrostatic attractions.
• D. Atoms are connected by a continuous network of covalent bonds throughout the entire solid.

Answer: (D)

Verified step by step guidance

1. Understand that covalent network solids are a type of solid where atoms are bonded together by covalent bonds in a continuous, extended network.
2. Recall that metallic bonding involves a 'sea of electrons' and is characteristic of metals, not covalent network solids.
3. Recognize that weak van der Waals forces occur between molecules in molecular solids, which is different from the strong covalent bonds in network solids.
4. Know that ionic solids consist of ions arranged in a lattice held by electrostatic attractions, which is distinct from covalent bonding.
5. Conclude that the best description of covalent network solids is that atoms are connected by a continuous network of covalent bonds throughout the entire solid.