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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.
The Periodic Table at a Glance (M. A. Beckett and A. W. G. Platt)L. L. Pesterfield The Periodic Table at a Glance is a good choice for the student who needs a quick review of the basics of inorganic chemistry but does not have the time to wade through a standard textbook. Pesterfield, L. L. J. Chem. Educ.2007, 84, 1110.
Periodicity / Periodic Table |
Atomic Properties / Structure
Probing the Orbital Energy of an Electron in an AtomJames L. Bills This article answers an appeal for simple theoretical interpretations of atomic properties. A theoretical snapshot of an atom, showing the screened nuclear charge and the electron to be ionized at its radius of zero kinetic energy, enables anyone to approximate its ionization energy. Bills, James L. J. Chem. Educ.2006, 83, 473.
Atomic Structure and IsotopesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Isotopes |
Atomic Properties / Structure
Atomic Structure and the Periodic Table Volume 05, issue 04 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
