A cubic solid is made of two elements P and Q. Atoms of Q are at the corners of the cube and P at the body- centre. What is the formula of the compound? What are the coordination numbers of P and Q?
It is given that the atoms of Q are present at the corners of the cube. 8×1/8=1. Therefore, wide variety of atoms of Q in a single unit cell It is likewise for the reason that the atoms of P are gift on the body-centre. Therefore, quantity of atoms of P in a single unit cell = 1 This manner that the ratio of the quantity of P atoms to the quantity of Q atoms, P:Q = 1:1 Hence, the formulation of the compound is PQ. The coordination wide variety of each P and Q is 8.
