The atomic radius of a sodium atom is 186 pm and the density of Na is 0.971 g/cm3. At 613,000 atm (9 million psi) the structure of Na metal becomes…

The atomic radius of a sodium atom is 186 pm and the density of Na is 0.971 g/cm3. At 613,000 atm (9 million psi) the structure of Na metal becomes fcc. Assuming the radius of Na is unchanged, what is the density of the fcc form of Na?