Explains using the linear combination of bonding orbitals methods; why two different diagrams are used to represent the molecules when the properties of homonuclear diatomic molecules are being discussed. (GA)

Objects to the idea of treating molecular particles, such as molecules and atoms, as equal in kind to substances when discussing chemical reactions, thus confusing their different roles in the theory of matter. (GA)

Reviews two component systems forming so-called inclusion compounds. (SL)

Reviews the study of molecular shapes and structures. (SL)

Reviews the topic of atomic, molecular, and ionic size. (SL)

Describes a beginning level undergraduate chemistry course designed to introduce students to the fundamental concepts of delocalized and localized molecular orbitals. (SL)

Completes a report from a previous article by presenting the important manufacture and uses of industrial chemicals. Gives structural formulas and percentages of each major use as well as the typical method of manufacture. (CW)

Advocates the teaching of quantum chemical ideas to undergraduates. Discusses the total failure of the electronegativity approach and comparison with other theoretical approaches. (CW)

Describes a simple method to teach molecular geometry using styrofoam balls and velcro strips. Discusses the construction and a procedure for using the model for teaching. (CW)

Provides an introduction to and summaries of the manufacturing methods and uses of chemicals 51-75 on the list of chemicals arranged in order of decreasing production in the United States. Gives production in pounds, annual growth, average price per pound, and organization according to the seven basic organic chemicals. (CW)

Presents calculations that suggest stoichiometric, ionic, and noble gas-metal compounds may be stable. Bases calculations on estimated values of electron affinity, anionic radius for the noble gases and for the Born exponents of resulting crystals. Suggests the desirability of experiments designed to prepare compounds containing anionic,…

Discusses the significance of periodicity and covalent atomic radius among the elements. Describes contraction across the row, expansion down the group, irregularities in the buildup of the periodic table and periodicities of physiochemical properties. (CW)

Describes an experiment to discover the topology of plasma membrane aminophospholipids (phosphatidylethanolamine and phosphatidylserine) using whole platelets and trinitrobenzene sulfonate (TNBS) as a probe. Reports changes in phospholipid distribution during platelet activation with simultaneous action of thrombia and collagen. Details the…

Describes industrial acetaldehyde synthesis/uses, explaining why acetaldehyde usage is declining in industry. Includes a discussion of the reaction chemistry, equations, and molecular structure diagrams. (JM)

Provides a set of instructions for writing Lewis octet structures which incorporates a simple rule called the "6N+2 Rule." Discusses the importance of these structures in elementary chemistry, biochemistry, and organic chemistry courses. Also discusses non-octet structures and how they are characterized. (JM)