A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is:
288 pm
408 pm
144 pm
204 pm
As we learnt in
No. of atoms(z) for face centered unit cell -
Lattice points: at corners and face centers of unit cell.
For face centered cubic (FCC), z=4.
- wherein
For an FCC lattices
Correct option is 1.
Option 1)
288 pm
Correct
Option 2)
408 pm
Incorrect
Option 3)
144 pm
Incorrect
Option 4)
204 pm
Incorrect