At room temperature, barium (Ba) has body-centered cubic (BCC) crystal structure. Calculate the lattice parameter (in 3 decimal places with a unit of nm) of, a,  face centered cubic unit cell for a metal that has an atomic weight of r = 0.2072 g mol^-1 and density of 11.560 kg/m³ Avogadro's number is 6022x10²³ atoms mol^-1 .
 

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Atomic weight 02072 g mol densing m Avogadro no 6022 x ... View the full answer