CHEM101 Study Guide - Problem Set, Ionic Radius, Sodium Chloride

• School: University of Alberta
• Department: Chemistry
• Course: CHEM101
• Professor: Yoram Apelblat

Document Summary

Most students will have their final lab exam next week. I recommend that you summarize each experiment (pre and post lab) on a page and study from that page rather than going back and forth the entire manual. All those triangles in the last two lectures . Ba crystallizes in a bcc structure and has a density of. Bcc means there are 2 atoms in the unit cell atom. 8 corner 8 corners + 1 center atom = 2 ba atoms. 6. 022 x 1023 atoms ba 2 atoms per cell. Density = mass volume range 1 50 g cm 3 bcc fcc r = From the last lecture fe problem (fe is a bcc crystal) r = 4 5. 013 x 10 8 cm = 2. 17 x 10 8 cm. = 2. 17 x 10 10 m = 217 pm. Atomic radii are in the range of 50 to several hundred picometers. The crystal structure of mgo is similar to that of.