If three elements $A, B, C$ crystalise in a cubic solid lattice with $B$ atoms at the cubic centres, $C$ aton at the centre of edges and A atoms at the corners, then formula of the compound is

Metallic conductors and semiconductors are heated separately. What are the changes with respect to conductivity?

What is the edge length of the unit cell of a body centred cubic crystal of an element whose atomic radius is 75 pm?

The number of atoms in body centred and face centred cubic unit cell respectively are