Position of atoms in molecular crystals can be determined by:
Correct answer: A. X-rays analysis
- A. X-rays analysis
- B. Spectroscopic analysis
- C. Spectrometric analysis
- D. Combustlon analysis
Explanation
Crystal structure is explored through the diffraction of waves having a wavelength comparable with the interatomic spacing (10−10 m) in crystals. Radiation of longer wavelength cannot reslove the details of structure, while radiation of much shorter wavelength Is diffracted through inconveniently small angles. Usually diffraction of X-ray is employed in the study of crystal structure as X-ray have wavelength comparable to interatomic spacing.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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