The diameter of a carbon atom is approximately 144 pm. Assuming a nanocontainer has a simple cubic structure and have an edge length of 25 nanometers, how many carbon atoms are there on a single edge of a nanocontainer?

To answer this question, you need to understand the naming of meter unit system. The unit pm stands for pico meter which was 1/1000 of nanometer. Then, the calculation would be:

Number of atom = container length / atom diameter

Number of atom = 25 nm x (1000pm/nm) / 144pm = 173.6 atom