Question

Argon, copper, sodium chloride, and carbon dioxide all crystallize in the fcc structure. How can this be when their physical properties are so different?​

Answer 1

beacause they have Different Matter

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Answer 2

Argon, copper, sodium chloride, and carbon dioxide all crystallize in the FCC structure.

Explanation:

The chemical properties are not entirely dependent on the arrangement of atoms in crystals. The arrangement of atoms in crystals is by their molecule size,  intermolecular forces, molecular weight, such as covalent forces, van der Waal interaction, electrostatic interaction, and other factors. This explains why the elements have various properties, even if they are arranged in an FCC crystal.