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Discovery VideosLyubov Hoffman Laroche, Gary Wulfsberg, Barbara Young The use of digital video for instruction has many advantages. In many situations the only way to present some chemical phenomena is through the use of video. The two video lessons presented here are examples intended to supplement our article in the August 2003 issue of JCE.
Bonding : Electronegativity (8 Variations)
From the bonds listed below, choose the one in which the highlighted atom is the partially positive end of the bond. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
Bonding : MostPolarBond (8 Variations)
From the bonds listed below, choose the one that is the most polar. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
Bonding : OrganicBondLength (10 Variations)
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. The structure for this compound is shown below, although lone electron pairs are not shown. Which of the following bonds in the structure is the shortest?
A New "Bottom-Up" Framework for Teaching Chemical BondingTami Levy Nahum, Rachel Mamlok-Naaman, Avi Hofstein, and Leeor Kronik This article presents a general framework for bonding that can be presented at different levels of sophistication depending on the student's level and needs. The pedagogical strategy for teaching this model is a "bottom-up" one, starting with basic principles and ending with specific properties. Levy Nahum, Tami; Mamlok-Naaman, Rachel; Hofstein, Avi; Kronik, Leeor. J. Chem. Educ.2008, 85, 1680.
Atomic Properties / Structure |
Covalent Bonding |
Ionic Bonding |
Lewis Structures |
Materials Science |
MO Theory |
Noncovalent Interactions
The Rotating Morse–Pekeris Oscillator RevisitedJosé Zúñiga, Adolfo Bastida, and Alberto Requena Examines the MorsePekeris oscillator model for the calculation of the vibrationrotation energy levels of diatomic molecules, demonstrating that it is possible to develop the model through an alternative method that allows correction of the MorsePekeris model through first-order perturbation theory. Zúñiga, José; Bastida, Adolfo; Requena, Alberto. J. Chem. Educ.2008, 85, 1675.
Periodic Table This interactive periodic table on the ACS website encourages a ?what?s this?? approach to exploration. It graphically highlights the various relationships among the elements. This periodic table appears courtesy of W. H. Freeman, publisher of Chemistry in the Community (a chemistry course for grades 9?12 developed by ACS) and CADRE design.
Applications of Chemistry |
Periodicity / Periodic Table
Linus Pauling, American Hero This article, which originally appeared in ChemMatters the award winning ACS magazine for high school students, profiles Linus Pauling.
Covalent Bonding |
Ionic Bonding |
Proteins / Peptides
Other Resources: First 3 results
Periodic Variation of IE and EAEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Periodicity / Periodic Table
Ionization EnergiesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
