This is an interactive Challenge in which students have to find others in the room with whom they "match" as a hard or soft acid or base. It brings to life the way inorganic chemists think about HSAB. Inorganic Challenges are exercises designed to be solved by a small group of students. Some Challenges practice a problem-solving algorithm, some reinforce important concepts, and some involve creativity or games.
This Challenge trains student to find inconsistencies in a molecular-orbital diagram. Inorganic Challenges are exercises designed to be solved by a small group of students. Some Challenges practice a problem-solving algorithm, some reinforce important concepts, and some involve creativity or games. You can pick and choose Challenges from our Web site to increase active learning in your classroom, and we ask that you contribute creative Challenges of your own to give a head start to teachers at other colleges and universities!
This Challenge practices both VB and MO models, and can be used to show the superiority of MO models for explaining simple molecules like O2 and CH4. It also demonstrates how scientists make rational choices between theories. Inorganic Challenges are exercises designed to be solved by a small group of students. Some Challenges practice a problem-solving algorithm, some reinforce important concepts, and some involve creativity or games.
This is an Inorganic Challenge that gives students an opportunity to practice the algorithm for difficult Lewis structures, and using good problem-solving technique. Inorganic Challenges are exercises designed to be solved by a small group of students. Some Challenges practice a problem-solving algorithm, some reinforce important concepts, and some involve creativity or games.
Some interactive Jmol models of some common crystal systems and some geological systems.
Students read Oliver Sacks' autobiography "Uncle Tungsten" and take turns writing chapter summaries and discussion questions. Some chapters focus on Sacks' childhood chemical explorations and others on the historical period of his youth. In the summary, students are asked to either explain the chemistry in contemporary terms OR explain the context (what was going on in the world) of the historical pieces.
This paper describes the synthesis and characterization of a Cr(I) dimer with a very short Cr-Cr distance. Computational studies support fivefold bonding between the chromium atoms. I have used this paper to introduce metal-metal multiple bonds and discuss the molecular orbital interactions of homonuclear diatomics including d-orbitals. More generally, it is a nice example to stimulate the discussion of what constitutes a bond and the various interpretations of bond order.