Atomic mass of an element is 36, what will be the mass of an unit cell if it crystallizes as face centered cubic unit cell?
236 x10 -23 g
23.9 x10 23g
25.36 x10 -23 g
2.36 x10 -23 g
FCC has 4 atoms so mass of four atoms = 36 x 4/6.022x10 -23 = 23.9 x10 23g