An element crystallizes in a face centered cubic lattice and the edge of the unit cell is \( 0.5...

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An element crystallizes in a face centered cubic lattice and the edge of the unit cell is \( 0.559 \) \( \mathrm{nm} \). The density is \( 3.19 \mathrm{~g} / \mathrm{cm}^{3} \). What is the atomic mass?
(a) \( 87.6 \)
(b) \( 79.9 \)
(c) \( 85.5 \)
(d) \( 83.9 \)
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