VSEPR

Today was our first big VSEPR day. We went over the electronic geometries associated with 2-6 regions of electron density (2 R.E.D. = linear; 3 R.E.D. = trigonal planar; 4 R.E.D. = tetrahedral; 5 R.E.D. = trigonal bipyramidal; 6 R.E.D. = octahedral) including the bond angles predicted by each of these geometries. This is a pretty big topic/concept, and the only way you'll get good at is by looking at and working through examples. The best thing you can do is look back over your class notes and study notes and every time you find a molecule, draw out a Lewis structure and assign a VSEPR electronic geometry. We'll be spending at least another day on this (probably 2 or 3).

For all of my lab students, your Fe ore hand in is due by noon next Tuesday. If you are in one of Dr. Marasinghe's labs or Dr. Edvenson's lab, check with your instructor for deadlines on this and all assignments.