To draw an FCC plane with Miller index {120}, we need to first understand the orientation of the plane in the crystal structure. In an FCC (face-centered cubic) crystal structure, the {120} plane is parallel to the (120) crystallographic direction and intersects the x, y, and z axes at 1, 2, and 0 lattice units respectively.
Here is a simple representation of an FCC plane with Miller index {120}:
``` /\ / \ / \ / \ / \ ```
This drawing represents the {120} plane in an FCC crystal structure. The plane is parallel to the (120) crystallographic direction and intersects the x, y, and z axes at lattice points 1, 2, and 0 respectively.