posted by Sidney Ngo .
The density of iridium is 22400 kg/m3 and the cell volume is 5.66 x 10-23 cm3. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number.
The molar mass of iridium is 192.22.
I know that this can either be a bcc, cap, or hcp arrangement.