Given :
Radius of copper atom , [tex]r=1.3\times 10^{-10}\ m[/tex] .
Length , l = 11.1 cm = 0.0111 m .
To Find :
How many times N can you divide to reduced to a single copper atom.
Solution :
Number of time cuts required is equal to total number of atoms .
[tex]N=\dfrac{0.0111}{2\times1.3\times 10^{-10}}\\\\N=4.27\times 10^{-7}[/tex]
Therefore , number of time we need to divide the rod is equal to [tex]4.27\times 10^{-7}[/tex].
Hence , this is the required solution .
