Lithium has a bcc structure. Its density is 530 kg m-3 and its atomic mass is 6.94 gmol-1. Calculate the edge length of a unit cell of lithium metal.

(NA=6.02 x1023 mol-1)

(a) 352 pm
(b) 527 pm
(c) 264 pm
(d) 154 pm

 

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