(a) Write down the number of atoms per shown unit cell, (b) find the atomic radius (assuming identical touching spheres), and (c) calculate the atomic packing fraction. Consider the shown unit cell to be cubic with lattice parameter, a, and the black atoms are at (0.25,0.25,0.25)a; (0.75,0.75,0.25)a; (0.25,0.75,0.75)a; (0.75,0.25,0.75)a. i.
(a) Write down the number of atoms per shown unit cell, (b) find the atomic radius (assuming identical touching spheres), and (c) calculate the atomic packing fraction. Consider the shown unit cell to be cubic with lattice parameter, a, and the black atoms are at (0.25,0.25,0.25)a; (0.75,0.75,0.25)a; (0.25,0.75,0.75)a; (0.75,0.25,0.75)a. i.
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Transcribed Image Text:(a) Write down the number of atoms per
shown unit cell,
(b) find the atomic radius (assuming
identical touching spheres), and
(c) calculate the atomic packing fraction.
Consider the shown unit cell to be cubic with
lattice parameter, a, and the black atoms are
at (0.25,0.25,0.25)a; (0.75,0.75,0.25)a;
(0.25,0.75,0.75)a; (0.75,0.25,0.75)a.
i.
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