Question

urgent!!

if three elements A,B,C crystallize in a cubic solid lattice with A atoms at the corners, B atoms at the cubic centre and C atoms at the centre of faces of the cube,then write the formula of the compound .

Answer 1

A atoms on corner = 8 corners × 1/8th of atom = 8 x 1/8 = 1

B atoms at cubic center= 1 center x 1 full atom = 1

C atoms at face center = 6 faces x 1/2th of atom = 6 x 1/2 = 3

A : B : C = 1 : 1 : 3

A3 : B3: C2 = 6:6:6

A3 B3 C2 < formula of compound

Answer 2

Hey !!

Atoms of A per unit cell = 8 × 1/8 = 1

Atoms of B per unit cell = 1

Atoms of C per unit cell = 6 × 1/2

Hence, the formula is ABC₃

Hope it helps you !!