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Question 7 10 pts A scientist believes he has found evidence that lithium crystallizes in a face centered cubic unit cell. Li
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Answer #1

For FCC,

4r = √2 a

a = 4×152/√2

= 430 pm

d = Z×M/Na×a3

= 4 × 7.0/6.023×1023×(430)3

= 0.580 g/cm​​3

(c) is correct option

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