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Hardness of Solid Substances - Grinding A number of metals and nonmetals are ground with a mortar and pestle. The nonmetals shown here are all soft (due to weak intermolecular forces), but the metals vary in hardness.
Forecasting Periodic Trends: A Semester-Long Team Exercise for Nonscience MajorsJohn Tierney Teams of students in a course for nonscience majors identify trends among the properties of elements in the periodic table, use Excel to plot and produce best-fit equations to describe relationships among those properties, and apply the resulting formulas to predict and justify the properties of missing elements. Tierney, John. J. Chem. Educ.2008, 85, 1215.
Atomic Properties / Structure |
Computational Chemistry |
Main-Group Elements |
Nonmetals |
Periodicity / Periodic Table |
Metals |
Student-Centered Learning
Predicting Inorganic Reaction Products: A Critical Thinking Exercise in General ChemistryDavid G. DeWit Describes a course module designed to afford practice in applying the principles encountered throughout the general chemistry sequence to understanding and predicting chemical reactivity and the products of simple inorganic reactions. DeWit, David G. J. Chem. Educ.2006, 83, 1625.
Acids / Bases |
Descriptive Chemistry |
Learning Theories |
Metals |
Nonmetals |
Oxidation / Reduction |
Periodicity / Periodic Table |
Reactions
IodineJay A. Young The hazards of iodine are discussed. Young, Jay A. J. Chem. Educ.2006, 83, 1285.
The Silicon Family Volume 03, issue 17 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Metalloids / Semimetals |
Materials Science
Silicon, Boron, and Their Compounds Volume 05, issue 16 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Metalloids / Semimetals |
Materials Science
Mechanisms That Interchange Axial and Equatorial Atoms in Fluxional ProcessesMarion E. Cass, Henry S. Rzepa, King Kuok Hii The Berry pseudorotation is a classical mechanism for interchanging axial and equatorial ligands in molecules with trigonal bipyramidal geometry. Teaching this mechanism presents particular pedagogic problems due to both its dynamic and three dimensional character. The approach taken here illustrates these processes using interactive animations embedded in a Web page and overcomes many limitations of a printed page.
