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Journal of Chemical Education

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Heilbronner, Edgar	1
Scerri, Eric R.	1

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Why Do Some Molecules Have Symmetry Different from that Expected?

Peer reviewed

Heilbronner, Edgar – Journal of Chemical Education, 1989

Discusses the problem of symmetry avoidance using water as an historical example. Uses simple pi systems for the analysis. Provides methodology and examples. Investigates two naive arguments. (MVL)

Descriptors: Chemical Bonding, Chemistry, College Science, Higher Education

Transition Metal Configurations and Limitations of the Orbital Approximation.

Peer reviewed

Scerri, Eric R. – Journal of Chemical Education, 1989

Points out a misconception that is reinforced in many elementary and advanced chemistry texts. Discusses the general limitations of the orbital concept. Notes misconceptions related to the transition elements and their first ionization energies. (MVL)

Descriptors: Atomic Structure, Chemical Nomenclature, Chemistry, Cognitive Structures