A. Determine the linear density for BCC lithium, which has a lattice parameter of 0.35089 nm,...

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Chemistry

A. Determine the linear density for BCC lithium, which has alattice parameter of 0.35089 nm, in the [100], [110], and [111]directions. Which of these directions is close packed?

B. Determine the planar density and packing fraction for BCClithium in the (100), (110), and (111) planes. Which, if any, ofthese planes is close packed?

C. A diffracted x-ray beam is observed from the (220) planes ofiron at a 2θ angle of 99.1o when x-rays of 0.15418 nm wavelengthare used. Calculate the lattice parameter of the iron.

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