Question

Copper has a unit cell volume of (47.453 A^3) and a face centered unit cell. How would I go about finding the volume of atoms within the unit cell? Would you use Avogadro's # somehow?

Answer 1

I don't get the 47.453 A^3 for volume. That seems far too large (of course that depends upon what A stands for).
Whatever the volume, then
V^1/3 = length of an edge of the unit cell = a. Then 4r = a(2<sup>1/2</sub>).
When you have found r (radius of the atom), then volume of the atom = (4/3)*pi*r³.

Answer 2

4r = a(2^1/2) and
volume of the atom = (4/3)*pi*r³

Answer 3

I got it thank you!
The A^3 was suppose to stand for ångström
cubed...

Answer 4

what does the pi stand for?