[StephenTumilty]

I'm looking for anyone that has done chemistry at univeritsy level as i have a few questions i really need help with as i don't have a clue. Any help would be much appreciated 

One of the question's is:

Calculate the atomic mass radius of copper at room temperature and explain why the theoretical density differs from the value that would obtained by experiment.

Structure F.C.C
Density 8944kg m-3
Atomic Weight 63.54g gmol-1
Avagadro's number 6.02*10(23)