Atoms of metals x, y, and z form face-centred cubic, body-centred cubic, and simple cubic unit cells of edge lengths Lₓ, Lᵧ, and L_z, respectively. If r_z = (√3/2)rᵧ, rᵧ = (8/√3)rₓ, M_z = (3/2)Mᵧ, and M_z = 3Mₓ, then the correct statement(s) is(are).