9.3. Atomic Orbitals Consistent with Molecular Shapes: Hybridization, 390
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Paramagnetism: Compounds Vials of a number of compounds (NaCl, MnSO4, FeSO4, CoCl2, NiSO4, ZnSO4, K4Fe(CN)6, [Co(NH3)6]Cl3, [Ni(NH3)6]Cl2, and H2O) are hung from a thread. When a magnet is brought near, some of the vials are attracted.
Magnetic Properties |
Atomic Properties / Structure
Paramagnetism: Oxidation States of Manganese Manganese(III) oxide, with 4 unpaired electrons per Mn atom, is more strongly attracted to a magnet than is manganese(IV) oxide, with only 3 unpaired electrons per Mn atom. Potassium permanganate, a compound of Mn(VII), has no unpaired electrons and is not attracted to a magnet.
An incomplete concept map is shown below, which set of terms for A, B, C and D would result in a correct map based on the concept of wave mechanics applied to a hydrogen atom?
The Genius of Slater's RulesJames L. Reed With only a few modifications a procedure has been developed that yields the one-electron energies for atoms and ions with a level of detail very well suited for instruction in the structure and properties of atoms. It provides for the computation of very reasonable values for such properties as ionization energies, electron affinities, promotion energies, electronic transitions, and even XPS and ESCA spectra. Reed, James L. J. Chem. Educ.1999, 76, 802.
Atomic Properties / Structure |
Quantum Chemistry |
Theoretical Chemistry |
Spectroscopy
Orbital Models Made of Plastic Soda BottlesVyacheslav V. Samoshin The models for demonstration of shape and direction of atomic and molecular orbitals, their overlaps, interactions, and hybridizations may be easily constructed from plastic soda bottles. When the bottles are screwed into the lids, the models of sp3, sp2, or sp hybridized atoms are obtained. Samoshin, Vyacheslav V. J. Chem. Educ.1998, 75, 985.
The Amount of Substance: MolesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
