I want to know if my answers are correct to the questions i answered. I have provided the question along with the answers please review them and make changes if it is wrong.

I. In a BCC structure (see below schematic), a=0.35 am, the atomie weight of the material is 141 g/mol, Avogadro constant is 6.023x10 atoms/mol, answer the following questions (6 points). 1.1. Draw a [127] direction (1 point). 1.2. Draw a (210) plane (point). 1.3. Calculate the theoretical density of the material (4 points). (1,2,1) direction in the lattice : taking reciprocal ( %0) (210) plane - Taking reciprocal ( 10) The theoretical daurity of a bre totoo structure, p. M7 NA a where M = molecular weight 141 ginah NA 4vs4ng ta. page edge length Mer of atoms in bee wnit call 2(1908 +1 -3) -0.355 D-LEX 141 X 2 FOREXIO" x (OX00P 10-9 X-ray diffraction pattern of gold as shown below has the FCC crystal structure. A monochromatic X-ray with a wavelength of 0.1542 am was used. The reflection order is 1 points). die 45 Determine the inter-planar spacing for the first peak (3 points). Determine the atomic radius of As based on the first diffraction peak (4 its). Determine the interplanar spacing of (422) planes (2 points). n- 2.d sig. Onder di Puchon de interes plenar distance (distance to s plane) angle & indoci a wavelengen Au fee agatal order oftehion 1 -0.1543 29 38-1' > */ 14.1 58 14.11 50 30 0-3812 3d sien 1x 1973 ds2 26 @ 0-3992 Peace ofree, experhon megtehen maxime, will be deemed for meuf ch Mather indien we are eft al odd er alleren * 10 bildene for miller Indices ,kt! two parsel planes of name in sicer guien [ login Te dute GS betin d 03 into a 47 TE [lenges of dingen VE cm 0.14 m 4 (4,12) plant Miler Dedor L-2 O 40 M reager 4 side of mit cel = a = Takenplanas dlome VP+42 d Om 16+4+4 0-40 m 724 d. 0.40 nm 4.8989 0.083 nm th