Q 12 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?

Q 12 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?

Solution

Number of atoms at corner in cubic solid   = 1/8 x 8  = 1

Number of atoms at the center in BCC     = 1

Hence the formulas of compound will PQ