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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.
Descriptive Chemistry |
Periodicity / Periodic Table
Assessment Questions: First 3 results
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.)
Lanthanum (La) and Actinium (Ac) Should Remain in the d-blockLaurence Lavelle This paper discusses the reasons and implications of placing lanthanum and actinium in the f-block and lutetium and lawrencium in the d-block. Lavelle, Laurence. J. Chem. Educ.2008, 85, 1482.
Atomic Properties / Structure |
Inner Transition Elements |
Periodicity / Periodic Table |
Transition Elements
Fully Exploiting the Potential of the Periodic Table through Pattern RecognitionEmeric Schultz This article describes an approach to learning chemical concepts that uses simple rules and pattern recognition to generate the formulas of the oxides and hydrides of selected elements. Schultz, Emeric. J. Chem. Educ.2005, 82, 1649.
Electronegativity WorksheetLynn Diener In this course you can find worksheets to use in your classes or to assign as homework assignments that teach various concepts about the periodic table using the free ChemEd DL resource, the Periodic Table Live!(PTL!).
Periodicity / Periodic Table
ElectronegativityEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Atomic Properties / Structure
Periodic Variation of IE and EAEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
