Answer:
[tex]N=47,954,528.3 atoms\\N=4.792x10^{7}atoms[/tex]
Explanation:
First we need to match the units of both measures, let's make meters for both of them, so:
[tex]d=5.3x10^{-10} m\\1in=2.54cm=0.0254m[/tex]
Now we need to make a relation between both measures, as we know that the first distance is:
[tex]5.3x10^{-10}m/atom[/tex]
Then:
[tex]N=\frac{0.0254m}{5.3x10^{-10}m/atom} \\\\N=47,954,528.3 atoms\\N=4.792x10^{7}atoms[/tex]