EMS-162_ReviewMidterm_2010

EMS-162_ReviewMidterm_2010 - EMS 162 Review for Midterm...

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EMS 162 – Review for Midterm Exam – Winter 2010 1) Bonding a. Covalent bonds b. Metallic bonds c. Ionics bonds d. van der waals bonds e. mixed bonding 2) Crystal = lattice + basis a. Unit cell b. Primitive unit cell c. Lattice vectors, a, b, c and angles α , β , γ 3) Four 2D crystal systems a. Square/cubic b. Hexagonal c. Rectangular d. Oblique 4) Seven 3D crystal systems a. Cubic b. Tetragonal c. Orthorhombic d. Rhombohedral e. Hexagonal f. Monoclinic g. Triclinic 5) 14 Bravais lattices – including special positions a. Simple b. Body centered c. Face centered d. Base centered 6) Miller indices a. (hkl) planes b. {hkl} family of planes c. [uvw] directions d. <uvw> family of directions e. 4 index notation for hexagonal unit cells 7) Reciprocal lattice 8) Symmetry elements a. Rotation b. Reflection/mirror plane c. Inversion/Center of symmetry d. Translation e. Roto-inversion f. Screw axis g. Glide plane h.
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