(Solved): 4- Calculate the linear density of atoms (atoms/cm) in the [100], [110] and [111] directions in FCC ...

4- Calculate the linear density of atoms (atoms/cm) in the [100], [110] and [111] directions in FCC copper \( \left(\mathrm{a}_{\mathrm{o}}=3.62 \mathrm{~A}_{\mathrm{o}}\right) \). 5- Calculate the planner density of atoms \( \left(a t o m s / \mathrm{cm}^{2}\right) \) in \( \mathrm{BCC} \) iron \( \left(\mathrm{ao}=2.86 \mathrm{~A}_{\circ}\right) \) in the \( (100),(110) \) and (111) planes.