Please correct answer and don't use hand rating (4)3. A diffraction pattrn of aluminum is obtained by using X-rays with wavelengths ofλ = 0.709 Å. The second-order Bragg diffraction from the parallel faces of the cubic unit cells isobserved at the angle 20 = 20.2°. Calculate the lattice parameter a.

Given data:Wavelength λ=0.709A˚ ,Second-order diffraction, n = 2 ,Angle 2θ=20.2∘,soθ=220.2∘=10.1∘…

Answered: (4) 3. A diffraction pattrn of aluminum…

Principles of Modern Chemistry

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Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

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Chapter21: Structure And Bonding In Solids

Section: Chapter Questions

Problem 26P

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(4) 3. A diffraction pattrn of aluminum is obtained by using X-rays with wavelengths of λ = 0.709 Å. The second-order Bragg diffraction from the parallel faces of the cubic unit cells is observed at the angle 20 = 20.2°. Calculate the lattice parameter a.