Imagine you are a particle smaller than an atom of small diameter impurity hovering over the surface of a metal

Imagine you are a particle smaller than an atom of small diameter impurity hovering over the surface of a metal. You proceeded into the metal from the grain boundaries that extended to the surface of the metal. After wandering around the grain boundaries for a while, you entered into the grains. Prepare a presentation in which you will draw pictures and describe what you encounter on this short trip at least to answer the following questions. What was the bond structure made by the atoms in this metal, and what are their differences from other known bond structures? What was the structure of the grain boundaries? How was the structure in the grain? The crystal structure you see? Were there any flaws?