Rutile has atoms of element a at the unit cell coordinates, Ask an Expert

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Rutile has atoms of element A at the unit cell coordinates (0, 0, 0) and (1/2, 1/2, 1/2) and atoms of element B at (1/4, 1/4, 0), (3/4, 3/4, 0), (3/4, 1/4, 1/2), and (1/4, 3/4, 1/2). The unit cell parameters are "a" equato to "b" not equal to "c" and alfa = beta = gamma = 90°.

(a) How many atoms of element A are there per unit cell?

(b) How many atoms of element B are there per unit cell?

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