A compound has cubical unit cell in which X atom are present at 6 corner, Y atom are at remaining corner & only at those face centres which are not opposite to each other & Z atoms are present at remaining face centre & body centre then find.
(i) Formula of compound (ii) Density if edge length `= 2 Å`
Given: Atomic mass of X = 40 amu, Y = 60 amu, Z = 80 amu