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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.
Covalent Bonding |
Nonmetals |
Physical Properties |
Solids |
Metallic Bonding |
Metals
Assessment Questions: First 3 results
Bonding : MatchBondStrength (8 Variations)
Match each of the following molecules to the best energy value for each bond. Do not use the table of bond energies in your book, but predict these values using your knowledge of bond length and bond strength.
Possible energies are: 300 kJ/mol, 330 kJ/mol, 415 kJ/mol and 950 kJ/mol.
Lewis Structure Representation of Free Radicals Similar to ClOWarren Hirsch and Mark Kobrak An unconventional Lewis structure is proposed to explain the properties of the free radical ClO and a series of its isoelectronic analogues, particularly trends in the spin density of these species. Hirsch, Warren; Kobrak, Mark. J. Chem. Educ.2007, 84, 1360.
Atmospheric Chemistry |
Computational Chemistry |
Covalent Bonding |
Free Radicals |
Lewis Structures |
Molecular Modeling |
MO Theory |
Valence Bond Theory
Moving Beyond the Single Center—Ways To Reinforce Molecular Orbital Theory in an Inorganic CourseMarion E. Cass and William E. Hollingsworth Rather than ending the discussion of molecular orbital (MO) theory in an inorganic chemistry course with molecules such as octahedral ML6 or square planar ML4, we suggest moving beyond the single-atom center to include the MO diagram of ethene (C2H4). Cass, Marion E.; Hollingsworth, William E. J. Chem. Educ.2004, 81, 997.
MO Theory |
Molecular Modeling
Laboratory Sequence in Computational Methods for Introductory ChemistryJason A. Cody and Dawn C. Wiser Description of a four-week laboratory sequence that exposes students to instrumentation (FT-NMR, GC) and computational chemistry. Cody, Jason A.; Wiser, Dawn C. J. Chem. Educ.2003, 80, 793.