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adamaero
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Homework Statement
The only things you know about the sample are: (i) it has some kind of cubic lattice, and (ii) it is a pure element. Identify the element in the crystalline sample.
SC: R = 0.5a
FCC: R = 0.25a√2
BCC: R = 0.25a√3
Distances from Bragg peaks:
d1 = 0.2037 nm
d2 = 0.1746 nm
d3 = 0.1244 nm
Homework Equations
n λ = 2dhklsin θ
d = a/√(h2+k2+l2)
The Attempt at a Solution
Assuming the above is correct, I'm stuck.
I think I need a table or something of each element. Extra
- http://biochem.co/wp-content/uploads/2008/08/metal-elements-periodic-table-structures.png
- http://www.slideshare.net/joserabelo/x-ray-diffraction-basics
- http://www-outreach.phy.cam.ac.uk/camphy/xraydiffraction/xraydiffraction_exp.htm
- https://www.physicsforums.com/threa...on-diffraction-peak-splitting-problem.842064/
- https://www.physicsforums.com/threads/braggs-law-bragg-reflection.796827/#post-5003781
- https://www.physicsforums.com/threads/braggs-law-in-crystallography.663554/#post-4225230
- https://ocw.mit.edu/courses/materials-science-and-engineering/3-091sc-introduction-to-solid-state-chemistry-fall-2010/crystalline-materials/self-assessment-crystalline-materials/MIT3_091SCF09_sa4_supp_sol.pdf
- https://ocw.mit.edu/courses/materials-science-and-engineering/3-091sc-introduction-to-solid-state-chemistry-fall-2010/crystalline-materials/16-crystallographic-notation-x-rays/MIT3_091SCF09_hw16_sol.pdf