Which statement best describes how atoms are arranged in pure metals?

• A. Atoms are arranged in long polymer chains.
• B. Atoms are randomly distributed without any order.
• C. Atoms are arranged in a regular, repeating lattice structure.
• D. Atoms are grouped in isolated molecules.

Answer: (C)

Verified step by step guidance

1. Understand that pure metals consist of atoms arranged in a specific pattern to maximize stability and bonding.
2. Recall that metals typically form a crystalline structure where atoms are packed closely together in a highly ordered and repeating pattern.
3. Recognize that this arrangement is called a lattice structure, which is a regular, repeating three-dimensional array of atoms.
4. Contrast this with other arrangements such as long polymer chains (typical of some organic compounds), random distribution (amorphous solids), or isolated molecules (molecular solids).
5. Conclude that the best description for atoms in pure metals is that they are arranged in a regular, repeating lattice structure.