A hypothetical metal A with a BCC lattice structure has a density of 8.87 g/cm 3 If a hypothetical metal B with an FCC lattice structure is created with a different element that has almost the same...

A hypothetical metal A with a BCC lattice structure has a density of 8.87 g/cm³
If a hypothetical metal B with an FCC lattice structure is created with a different element that has almost the same atomic mass (g/mole) and almost the same atomic radius, what is the density of metal B? Justify your answer.