Question

1/take +z 90° 0.45 nm To which crystal sy o 90° 90° 0.35 nm -0.35 nm +x this unit cell belong? Triclinic crystal system Monoclinic crystal system Tetragonal crystal system Cubic crystal system MAY 2 .

Answer 1

Q 2) Tetragonal crystal system

Q 3) density = 8.49 g/cm​​​​​3​​​​

Q 4) body centered cubic (BCC)

0:45 OM 2y 35 OM nM So it is In this crystal system a = b #c d=B=V = 90°. Tetragonal crystal system. The volume of the crystal = v= abc = 0:35 x 0.35 5X0:45 x 10 = 0.055125 x 10-24 ZE no. of atom Junit cell Me molecular weil V: volume Nar Avogadros density = ZXM cm3 UXNA "weight no. -2x 142 0.055125 * 1699x6.023x133 282 0:332017875 x 10 8.49 g cm3 of all the edges were equal then this would be called as I body centered cabic (BCC) crystal