Question

A substance has fcc lattice in which ‘’ occupies the centre of each face and
‘’ occupies each corner of the cube, the ‘’ and ‘’ are respectively

Answer 1

Answer:

A atoms are at eight corners of the cube. :. Number of I atoms in the unit = 8 x 1/8 = 1 B atoms are at the face centre of six faces. .'. Number of B atoms share the unit cell = 6 x 1/2 = 3 Thus, the composition of the substance is AB3.Read more on Sarthaks.com - https://www.sarthaks.com/283548/a-substance-axby-crystallizes-in-a-face-centred-cubic-fcc-lattice-in-which-atoms