Lithium has a bcc structure. Its density is 530 kg m -3 and its atomic mass is 6.94 g mol -1 . Calculate the edge length of a unit cell of Lithium metal. (N A = 6.02 10 23 mol -1 )

1. A. 154 pm
2. B. 352 pm
3. C. 527 pm
4. D. 264 pm

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