14. Germanium crystallizes in a cubic lattice. The atomic mass and radius of a germanium atom are 72.6 g. and 123 pm respectively. The unit cell edge length is 566 pm. The density of germanium is 5.33 g.. How many germanium atoms are there in a unit cell?
(A) 2
(B) 4
(C) 8
(D) 12
(E) 24

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