4200LQ2K_F11

4200LQ2K_F11 - GLY 4200C Name Laboratory Midterm - Closed...

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GLY 4200C Name Laboratory Midterm - Closed Book October 19, 2011 8 points 16 students took quiz - red numbers indicate times question was missed 1. What is the coordination number of a cation in each of the following configurations? (5 points total) Configuration CN 3 Trigonal III 0 Octahedral VI 1 Square Planar IV 4 Linear II 0 Roman Numerals? 2. What do each of the symbols mean? (1 point each) 1 m Mirror plane 4 A 4 Four fold rotation axis 3 3. If an object has one six-fold axis, six two-fold axes, and an inversion center, how many mirror planes does it have? Seven (1 point)
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GLY 4200C Name Laboratory Midterm - October 19, 2011 May Use Crystal Class Sheet 32 points 1. Examine each model. Determine all of the symmetry elements present. List the number of each type of element in the table below. For the inversion center, indicate YES (it is present) or NO (it is not present). Then indicate the crystal class to which the object belongs. You will receive one-half point for each symmetry element correctly listed (number and type). One-half point will be subtracted for
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4200LQ2K_F11 - GLY 4200C Name Laboratory Midterm - Closed...

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