Session S39b (Tuesday, 2pm, Thomas 117)

P498: Investigation into misconceptions about chemical bonding and molecular structure held by general chemistry students

Beth Lindquist, Lizanne DeStefano, Thom Dunning, David Woon (University of Illinois – Urbana/Champaign, USA)

The orbital nature of chemical bonding is an area rife with misconceptions in undergraduate education. The models of molecular structure and chemical bonding that are currently taught in general chemistry (e.g., Lewis structures and VSEPR) do not emphasize the connection between atomic orbitals and molecular structure, often leaving students without the tools necessary to predict the geometry of new molecules. To elucidate student misconceptions about these topics, an extensive survey was administered to students in general chemistry courses at the University of Illinois. Questions tested understanding of concepts such as molecular structure, polarity, chemical bonding, and orbitals. The results of this assessment, and its implications for the general chemistry curriculum, will be discussed. Our group proposes to revise the instruction of chemical bonding to include a model of instruction based on building molecules from the orbital diagrams of the atoms.

Categories

A sample text widget

Etiam pulvinar consectetur dolor sed malesuada. Ut convallis euismod dolor nec pretium. Nunc ut tristique massa.

Nam sodales mi vitae dolor ullamcorper et vulputate enim accumsan. Morbi orci magna, tincidunt vitae molestie nec, molestie at mi. Nulla nulla lorem, suscipit in posuere in, interdum non magna.