SAMPLE PROBLEM 12.4
Determining atomic radius from crystal structure
PLAN:
Use the density and molar mass to find the volume of 1 mol of Ba. Since 68% (for a body-centered cubic) of the unit cell contains atomic material, dividing by Avogadro’s number will give the volume of one atom of Ba. Using the volume of a sphere, the ra
density of Ba (g/cm3)
volume of 1 mol Ba metal
volume of 1 Ba atom
radius of a Ba atom
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