| Journal Articles: 44 results |
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News from the Periodic Table: An Introduction to "Periodicity Symbols, Tables, and Models for Higher-Order Valency and Donor–Acceptor Kinships" Henry A. Bent and Frank Weinhold Proposes that alternative display topologies such as a 2D "left-step" or "step-pyramid" table or 3D "periodic towers" can supplement or supplant the standard periodic table by better emphasizing higher-order patterns of chemical association and reactivity, rather than the physical resemblances of standard-state elemental substances. Bent, Henry A.; Weinhold, Frank. J. Chem. Educ. 2007, 84, 1145.
Atomic Properties / Structure |
Periodicity / Periodic Table |
Spectroscopy
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Probing the Orbital Energy of an Electron in an Atom James 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 Properties / Structure |
Main-Group Elements |
Periodicity / Periodic Table |
Physical Properties |
Quantum Chemistry |
Theoretical Chemistry
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Trends in Ionization Energy of Transition-Metal Elements Paul S. Matsumoto Examines why, as the number of protons increase along a row in the periodic table, the first ionization energies of the transition-metal elements are relatively steady, but that for the main-group elements increases. Matsumoto, Paul S. J. Chem. Educ. 2005, 82, 1660.
Atomic Properties / Structure |
Periodicity / Periodic Table |
Transition Elements
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The Place of Zinc, Cadmium, and Mercury in the Periodic Table William B. Jensen Explanation for why the zinc group belongs with the main group elements; includes several versions of periodic tables. Jensen, William B. J. Chem. Educ. 2003, 80, 952.
Periodicity / Periodic Table |
Main-Group Elements |
Transition Elements |
Descriptive Chemistry |
Atomic Properties / Structure
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The Proper Place for Hydrogen in the Periodic Table Marshall W. Cronyn Case for hydrogen to be placed above carbon in the periodic table. Cronyn, Marshall W. J. Chem. Educ. 2003, 80, 947.
Main-Group Elements |
Periodicity / Periodic Table
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The Periodic Table as a Mnemonic Device for Writing Electronic Configurations Suzanne T. Mabrouk Method for using the periodic table as a mnemonic device for writing electronic configurations. Mabrouk, Suzanne T. J. Chem. Educ. 2003, 80, 894.
Atomic Properties / Structure |
Nonmajor Courses |
Periodicity / Periodic Table
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The Mendeleev-Seaborg Periodic Table: Through Z = 1138 and Beyond Paul J. Karol Extending the periodic table to very large atomic numbers and its implications for the organization of the periodic table, consideration of relativistic effects, and the relative stability of massive and supermassive atomic nuclei. Karol, Paul J. J. Chem. Educ. 2002, 79, 60.
Atomic Properties / Structure |
Nuclear / Radiochemistry |
Periodicity / Periodic Table |
Astrochemistry
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The Mole, the Periodic Table, and Quantum Numbers: An Introductory Trio Mali Yin and Raymond S. Ochs Suggestions for presenting and developing three key ideas in chemistry: the mole, the periodic table, and quantum numbers. Yin, Mali; Ochs, Raymond S. J. Chem. Educ. 2001, 78, 1345.
Nonmajor Courses |
Periodicity / Periodic Table |
Stoichiometry |
Atomic Properties / Structure
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Melting Point, Density, and Reactivity of Metals Michael Laing Using melting points and densities to the predict the relative reactivities of metals. Laing, Michael. J. Chem. Educ. 2001, 78, 1054.
Descriptive Chemistry |
Metals |
Periodicity / Periodic Table |
Physical Properties |
Reactions |
Thermodynamics |
Calorimetry / Thermochemistry |
Electrochemistry
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Screening Percentages Based on Slater Effective Nuclear Charge as a Versatile Tool for Teaching Periodic Trends Kimberley A. Waldron, Erin M. Fehringer, Amy E. Streeb, Jennifer E. Trosky, and Joshua J. Pearson Using charge shielding to identify and explain trends within the periodic table. Waldron, Kimberley A.; Fehringer, Erin M.; Streeb, Amy E.; Trosky, Jennifer E.; Pearson, Joshua J. J. Chem. Educ. 2001, 78, 635.
Periodicity / Periodic Table |
Theoretical Chemistry |
Atomic Properties / Structure
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Electronegativity and Bond Type: Predicting Bond Type Gordon Sproul Important limitations with using electronegativity differences to determine bond type and recommendations for using electronegativities in general chemistry. Sproul, Gordon. J. Chem. Educ. 2001, 78, 387.
Covalent Bonding |
Materials Science |
Periodicity / Periodic Table |
Ionic Bonding |
Atomic Properties / Structure |
Metallic Bonding
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Ionization Energies, Parallel Spins, and the Stability of Half-Filled Shells Peter Cann Three methods for explaining the decrease in first ionization energies between group V and group VI elements are described and commented upon. The quantum mechanical origin of the unhelpful concept of half-shell stability is explained in terms of exchange energy, for which the alternative term parallel spin avoidance factor is suggested. It is recommended that for pre-university students the simplest explanation, in terms of Coulombic repulsion between two electrons occupying the same orbital, is adopted: it involves fewer difficult concepts than the other explanations and its predictions are no less accurate. Cann, Peter. J. Chem. Educ. 2000, 77, 1056.
Atomic Properties / Structure |
Periodicity / Periodic Table |
Quantum Chemistry |
Theoretical Chemistry
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How Good Is the Quantum Mechanical Explanation of the Periodic System? Eric R. Scerri The use of quantum mechanics, or more specifically, orbitals and electronic configurations in teaching general chemistry is now such a widespread trend that it would be utterly futile to try to reverse it. Moreover, orbitals and configurations have been extremely useful in providing a theoretical framework for the unification of a multitude of chemical facts. Scerri, Eric R. J. Chem. Educ. 1998, 75, 1384.
Periodicity / Periodic Table |
Quantum Chemistry |
Theoretical Chemistry
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A Mnemonic Method for Assigning the Electronic Configurations of Atoms Nerea Iza and Manuel Gil An algorithm for determining electronic configurations. Iza, Nerea; Gil, Manuel. J. Chem. Educ. 1995, 72, 1025.
Atomic Properties / Structure |
Periodicity / Periodic Table
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The Periodic Table of Atoms: Arranging the Elements by a Different Set of Rules Treptow, Richard S. The periodic table found in this paper is based on the properties of free gaseous atoms rather than atoms in a chemical environment. Treptow, Richard S. J. Chem. Educ. 1994, 71, 1007.
Periodicity / Periodic Table |
Atomic Properties / Structure
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On Using Incomplete Theories as Cataloging Schemes: Aufbau, Abbau, and VSEPR Tykodi, R. J. How to restructure as cataloging schemes the aufbau and abbau procedures for obtaining the ground-state electronic structures of atoms and monatomic ions. Tykodi, R. J. J. Chem. Educ. 1994, 71, 273.
VSEPR Theory |
Atomic Properties / Structure |
Periodicity / Periodic Table |
Molecular Properties / Structure
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How to get more from ionization energies in the teaching of atomic structure Mirone, Paolo A wealth of experimental data could be exploited more extensively and profitably than what is presently done in the teaching of atomic structure. Mirone, Paolo J. Chem. Educ. 1991, 68, 132.
Atomic Properties / Structure |
Periodicity / Periodic Table
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The periodicity of electron affinity Myers, R. Thomas In general, the values of electron affinity for the elements can be understood in terms of their ground state electron configuration, and the screening (effective nuclear charge) exerted on the added electron by the electrons already present in the neutral atom. Myers, R. Thomas J. Chem. Educ. 1990, 67, 307.
Atomic Properties / Structure |
Periodicity / Periodic Table
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Let us make the table periodic Campbell, J. Arthur Making the periodic table look periodic. Campbell, J. Arthur J. Chem. Educ. 1989, 66, 739.
Periodicity / Periodic Table
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Periodic contractions among the elements: Or, on being the right size Mason, Joan Contraction across the row, irregularities in the build up of the periodic table, the second row anomaly relativistic contraction and expansion among the heavier elements, post-transition anomaly, periodicities of physicochemical properties. Mason, Joan J. Chem. Educ. 1988, 65, 17.
Descriptive Chemistry |
Periodicity / Periodic Table |
Atomic Properties / Structure
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The transuranium elements Seaborg, Glenn T. History of the discovery of the transuranium elements. Seaborg, Glenn T. J. Chem. Educ. 1985, 62, 463.
Transition Elements |
Metals |
Periodicity / Periodic Table
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Building a periodic table Fowler, Linda S. The activity described in this paper yielded comments such as, "I've never had so much fun taking a test. That was great" and "That lady must be crazy - that was impossible". Student understanding of periodic trends are authentically challenged and assessed in this problem. Fowler, Linda S. J. Chem. Educ. 1981, 58, 634.
Periodicity / Periodic Table
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Exchange stabilization and the variation of ionization energy in the pn and dn series Blake, Antony B. This article is concerned with two types of ionizations that are of special importance to chemists. The author's main purpose is to clarify current textbook interpretations of the peculiar decrease in ionization energy following completion of a half-filled p or d shell. Blake, Antony B. J. Chem. Educ. 1981, 58, 393.
MO Theory |
Atomic Properties / Structure |
Periodicity / Periodic Table |
Quantum Chemistry
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4s Sometimes is below 3d - the author replies Pilar, Frank L. Reply to criticism of original article. Pilar, Frank L. J. Chem. Educ. 1979, 56, 767.
Atomic Properties / Structure |
Periodicity / Periodic Table
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4s Sometimes is below 3d Carlton, Terry S. Seeks to correct flaws in cited article. Carlton, Terry S. J. Chem. Educ. 1979, 56, 767.
Atomic Properties / Structure |
Periodicity / Periodic Table
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The experimental values of atomic electron affinities. Their selection and periodic behavior Chen, E. C. M.; Wentworth, W. E. Presents experimental values of atomic electron affinities and discusses their determination. Chen, E. C. M.; Wentworth, W. E. J. Chem. Educ. 1975, 52, 486.
Atomic Properties / Structure |
Periodicity / Periodic Table
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Regularities and relations among ionization potentials of nontransition elements Liebman, Joel F. Provides several semiempirical procedures for investigating ionization potentials. Liebman, Joel F. J. Chem. Educ. 1973, 50, 831.
Atomic Properties / Structure |
Periodicity / Periodic Table
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The periodic systems of D. I. Mendeleev and problems of nuclear chemistry Gol'danskii, V. I.; translated by Avakian, Peter Examines the acquisition and identification of new chemical elements and the structure of the eighth period of the periodic table. Gol'danskii, V. I.; translated by Avakian, Peter J. Chem. Educ. 1970, 47, 406.
Nuclear / Radiochemistry |
Atomic Properties / Structure |
Periodicity / Periodic Table |
Metals
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The use of tables of data in teaching: The students discover laws about ionization potentials Haight, G. P., Jr. Students are asked to see what they can discover in a table of ionization potentials of the elements like that presented in most general chemistry textbooks. Haight, G. P., Jr. J. Chem. Educ. 1967, 44, 468.
Atomic Properties / Structure |
Periodicity / Periodic Table
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A periodic table Ternstrom, Torolf Presents a periodic organization that includes the neutron and neutrino. Ternstrom, Torolf J. Chem. Educ. 1964, 41, 190.
Periodicity / Periodic Table
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Illuminated periodic table Cordes, A. W. A picture of an illuminated periodic table in use at the University of Arkansas. Cordes, A. W. J. Chem. Educ. 1964, 41, 189.
Periodicity / Periodic Table
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A rational periodic table Sanderson, R. T. Presents one author's attempt to bring greater rationality to the organization of the elements. Sanderson, R. T. J. Chem. Educ. 1964, 41, 187.
Periodicity / Periodic Table
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The atomic form periodic table Strong, Frederick C. Presents an "atomic form" of the periodic table, which offers some advantages to the standard organization. Strong, Frederick C. J. Chem. Educ. 1959, 36, 344.
Periodicity / Periodic Table
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A schematic representation of valence Sanderson, R. T. This paper describes a new chart representing the valence structure of atoms; by studying this chart, with the help of a few simple rules, students of elementary chemistry can acquire a useful understanding of chemical combination. Sanderson, R. T. J. Chem. Educ. 1958, 35, 541.
Atomic Properties / Structure |
Periodicity / Periodic Table |
Enrichment / Review Materials |
Transition Elements |
Metals |
Nonmetals
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Teaching electron configurations Eichinger, Jack W., Jr. Time can be saved and confusion avoided by developing a systematic chart of the elements based on the energy levels of atomic orbitals very early in the general college chemistry course. Eichinger, Jack W., Jr. J. Chem. Educ. 1957, 34, 504.
Atomic Properties / Structure |
Periodicity / Periodic Table
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A periodic table and new periodic functions Szabo, Z. G.; Lakatos, B. A theoretically correct yet simple periodic system may be obtained by rearranging the long periodic table in such a way that the inert gases are situated in the middle. Szabo, Z. G.; Lakatos, B. J. Chem. Educ. 1957, 34, 429.
Periodicity / Periodic Table
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The electron chart Eichinger, Jack W., Jr. Presents a periodic wall chart organized according to the increasing energy of valence electrons. Eichinger, Jack W., Jr. J. Chem. Educ. 1957, 34, 70.
Periodicity / Periodic Table |
Atomic Properties / Structure
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The fable of the atomic theater Kerker, Milton Organizes the elements in a periodic sequence resembling seats in a theater. Kerker, Milton J. Chem. Educ. 1957, 34, 32.
Atomic Properties / Structure |
Periodicity / Periodic Table
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A periodic table: The "Aufbauprinzip" as a basis for classification of the elements Longuet-Higgins, H. C. This note recommends a presentation of the periodic table designed to show as directly as possible how the place of an element in the table is related to the electronic structure of the atom. Longuet-Higgins, H. C. J. Chem. Educ. 1957, 34, 30.
Periodicity / Periodic Table |
Atomic Properties / Structure
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A new periodic chart with electronegativities Sanderson, R. T. This paper describes a new chart that has been designed to portray clearly and vividly patterns in relative atomic radius, electronic configuration, and electronegativity. Sanderson, R. T. J. Chem. Educ. 1956, 33, 443.
Periodicity / Periodic Table |
Atomic Properties / Structure
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Regularities among the representative elements: The "paired electron rule" Condon, F. E. If the oxidation states characteristic of various groups are correlated in terms of electron subshells, they become reasonable and logical rather than mere facts to be memorized. Condon, F. E. J. Chem. Educ. 1954, 31, 651.
Periodicity / Periodic Table |
Atomic Properties / Structure |
Oxidation State
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The periodic table: The 6d-5f mixed transition group Coryell, Charles D. With relatively few modifications, the Bohr-type periodic table presented by Glocker and Popov can be made to reflect more instructively the rather complex relationships obtained in the neighborhood of the 4f or gadolinium transition group and, more importantly, in the 6d-5f sequence extending from actinium through the region of uranium and the synthetic earths to element 103. Coryell, Charles D. J. Chem. Educ. 1952, 29, 62.
Periodicity / Periodic Table |
Transition Elements |
Atomic Properties / Structure
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The lanthanide contraction as a teaching aid Keller, R N. This paper presents a modified form of the atomic volume curve that illustrates graphically the lanthanide contraction; a number of chemical consequences of this effect are also discussed. Keller, R N. J. Chem. Educ. 1951, 28, 312.
Transition Elements |
Periodicity / Periodic Table
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Valency and the periodic table Glockler, George; Popov, Alexander I. Presents a modification of the Bohr-Thomsen-Akhumov periodic table stressing patterns to found among the rare earth elements. Glockler, George; Popov, Alexander I. J. Chem. Educ. 1951, 28, 212.
Periodicity / Periodic Table |
Oxidation State |
Transition Elements |
Atomic Properties / Structure
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