Correct Option is (A)
Among the given options, Copper (Cu) has a cubic close-packed (ccp) crystal structure.
In a ccp structure, atoms are arranged in a specific manner that allows them to occupy the maximum available space in the crystal lattice. Copper, represented here as Option A, is well-known for having this type of arrangement.
The other metals listed have different crystal structures :
- Zinc (Zn) has a hexagonal close-packed (hcp) structure.
- Magnesium (Mg) also crystallizes in an hcp structure.
- Polonium (Po) has a simple cubic structure at room temperature, but under different conditions, it can exhibit other structures.