Kelvi

Lithium has a bcc structure. Its density is $520$ kg m $^{-3}$ and its atomic mass is $6.94$ g mol $^{-1}.$ Calculate the edge length of a unit cell of Lithium metal (in pm). $(NA = 6.02 × 10^{23} mol^{−1})$

hard

Classification of Elements and Periodicity in Properties

2016

chemistry

154 pm

352 pm

527 pm

264 pm

Explanation

To solve this problem, we need to find the edge length of a unit cell of Lithium, which has a bcc (body-centered cubic) structure. $\\$ Given: $\\$ • Density of Lithium $(\rho) = 520$ kg m $^{-3} = 0.520$

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Lithium has a bcc structure. Its density is 520 520 520 kg m−3^{-3} −3 and its atomic mass is 6.94 6.94 6.94 g mol−1.^{-1}. −1.Calculate the edge length of a unit cell of Lithium metal (in pm).(NA=6.02×1023mol−1) (NA = 6.02 × 10^{23} mol^{−1})(NA=6.02×1023mol−1)

Explanation

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Lithium has a bcc structure. Its density is $520$ kg m $^{-3}$ and its atomic mass is $6.94$ g mol $^{-1}.$ Calculate the edge length of a unit cell of Lithium metal (in pm). $(NA = 6.02 × 10^{23} mol^{−1})$