TIGER

Journal Articles: 27 results
E = mc2: An Intuitive Derivation  James J. Leary and William H. Ingham
Einstein's famous equation E = mc2 is derived using a thought experiment that can easily be understood by any serious student of chemistry.
Leary, James J.; Ingham, William H. J. Chem. Educ. 2007, 84, 1651.
Atomic Properties / Structure |
Instrumental Methods
Millikan: Good to the Last (Oil) Drop  Earl F. Pearson
In this analogy, drop-shaped pieces of magnet represent oil drops, steel BBs represent the electrons, and the mass of a BB represents the charge of an electron. The smallest possible difference in mass between any two samples of BBs should be the mass of a single BB.
Pearson, Earl F. . J. Chem. Educ. 2006, 83, 1312A.
Atomic Properties / Structure
E = mc2 for the Chemist: When Is Mass Conserved?  Richard S. Treptow
Einstein's famous equation is frequently misunderstood in textbooks and popular science literature. Its correct interpretation is that mass and energy are different measures of a single quantity known as massenergy, which is conserved in all processes.
Treptow, Richard S. J. Chem. Educ. 2005, 82, 1636.
Atomic Properties / Structure |
Nuclear / Radiochemistry |
Theoretical Chemistry |
Thermodynamics
Understanding and Interpreting Molecular Electron Density Distributions  C. F. Matta and R. J. Gillespie
A simple introduction to the electron densities of molecules and how they can be analyzed to obtain information on bonding and geometry.
Matta, C. F.; Gillespie, R. J. J. Chem. Educ. 2002, 79, 1141.
Covalent Bonding |
Molecular Properties / Structure |
Quantum Chemistry |
Theoretical Chemistry |
Atomic Properties / Structure |
Molecular Modeling |
VSEPR Theory
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
Chemistry of the Heaviest Elements-One Atom at a Time  Darleane C. Hoffman and Diana M. Lee
A 75-year perspective of the chemistry of the heaviest elements, including a 50-year retrospective view of past developments, a summary of current research achievements and applications, and some predictions about exciting, new developments that might be envisioned within the next 25 years.
Hoffman, Darleane C.; Lee, Diana M. J. Chem. Educ. 1999, 76, 331.
Chromatography |
Instrumental Methods |
Isotopes |
Nuclear / Radiochemistry |
Separation Science |
Descriptive Chemistry |
Enrichment / Review Materials |
Atomic Properties / Structure
News from Online: Photons and Lasers  Carolyn Sweeney Judd
Online resources related to light and lasers.
Judd, Carolyn Sweeney. J. Chem. Educ. 1998, 75, 526.
Lasers |
Spectroscopy |
Atomic Properties / Structure
Nuclear Shapes: From the Mundane to the Exotic  Yates, Steven W.
The shape and stability of atomic nuclei.
Yates, Steven W. J. Chem. Educ. 1994, 71, 837.
Nuclear / Radiochemistry |
Atomic Properties / Structure
A simple laboratory experiment illustrating the relative nature of atomic weights  Huff, Randolph B.; Evans, David W.
The concept of atomic weight scale remains a source of confusion for beginning chemistry students. This paper proposes a simple lab experience that could help students better understand this idea.
Huff, Randolph B.; Evans, David W. J. Chem. Educ. 1991, 68, 675.
Atomic Properties / Structure |
Periodicity / Periodic Table
The nature of the chemical bond--1990: There are no such things as orbitals!  Ogilivie, J. F.
The author discusses the fundamental principles of quantum mechanics, the laws and theories, and the relationship of quantum-mechanics to atomic and molecular structure, as well as their relevance to chemical education.
Ogilivie, J. F. J. Chem. Educ. 1990, 67, 280.
Quantum Chemistry |
Atomic Properties / Structure |
Molecular Properties / Structure
What is an element?  Roundy, Willard H., Jr.
Problems with using outdated definitions of what constitutes an element.
Roundy, Willard H., Jr. J. Chem. Educ. 1989, 66, 729.
Isotopes |
Atomic Properties / Structure
The squeezed-earth problem   Rhodes, Gale
This take-home-exam question promotes a discussion in class and demonstrates the conceptual difficulties in understanding protons and neutrons.
Rhodes, Gale J. Chem. Educ. 1986, 63, 970.
Atomic Properties / Structure |
Solid State Chemistry
Updating the atomic theory in general chemistry  Whitman, Mark
Presents a descriptive overview of the recent achievements that have furthered the understanding of atomic structure to provide instructors with the background necessary to enhance their classroom presentations.
Whitman, Mark J. Chem. Educ. 1984, 61, 952.
Atomic Properties / Structure
A simulation of Rutherford experiment  Hau, Kit-Tai
An overhead demonstration simulating Rutherford's experiment to detect the atomic nucleus.
Hau, Kit-Tai J. Chem. Educ. 1982, 59, 973.
Atomic Properties / Structure |
Nuclear / Radiochemistry
But if atoms are so tiny...  Kolb, Doris
Reviews the atomic theory, the laws of chemical combination, atomic weight scales, Avogadro's hypothesis, the development of the mass spectrograph, the meaning of atomic weight, and the difference between mass and weight in answering the question "If atoms are so small, how can we know how much they weigh?" [Debut]
Kolb, Doris J. Chem. Educ. 1977, 54, 543.
Atomic Properties / Structure |
Kinetic-Molecular Theory |
Mass Spectrometry
Nuclear concepts as part of the undergraduate chemistry curriculum  Caretto, A. A., Jr.; Sugihara, T. T.
It is proposed that there are distinct advantages to a freshman curriculum that introduces nuclear concepts simultaneously with the discussion of analogous atomic and molecular concepts.
Caretto, A. A., Jr.; Sugihara, T. T. J. Chem. Educ. 1970, 47, 569.
Nuclear / Radiochemistry |
Atomic Properties / Structure
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
Chemical queries. Especially for introductory chemistry teachers  Young, J. A.; Malik, J. G.; Choppin, Gregory R.; Young, J. P.
(1) Is there more to nuclear stability than only the neutron to proton ration? - answer by Choppin. (2) What are the products generated by the electrolysis of molten potassium nitrate with stainless steel electrodes? - answer by Young.
Young, J. A.; Malik, J. G.; Choppin, Gregory R.; Young, J. P. J. Chem. Educ. 1970, 47, 73.
Nuclear / Radiochemistry |
Isotopes |
Atomic Properties / Structure |
Electrochemistry
Precise atomic and molecular models  Adler, Alan D.; Steele, William J.
Presents designs for skeletal or lattice and space-filling models
Adler, Alan D.; Steele, William J. J. Chem. Educ. 1964, 41, 656.
Atomic Properties / Structure |
Molecular Properties / Structure |
Molecular Modeling
Atomic and molecular models made from vinyl covered wire  Larson, G. Olof.
This paper presents a series of scalar models made from vinyl covered wire.
Larson, G. Olof. J. Chem. Educ. 1964, 41, 219.
Atomic Properties / Structure |
Molecular Modeling |
Molecular Properties / Structure
Molecular models featuring molecular orbitals  Brumlik, George C.
Molecular models have been constructed that attempt to represent atomic and molecular orbitals as accurately as the current theories of valence and pertinent experimental evidence permit.
Brumlik, George C. J. Chem. Educ. 1961, 38, 502.
Molecular Modeling |
Atomic Properties / Structure |
MO Theory
The structure of the nucleus  Flowers, B. H.
Describes the liquid drop, shell, and optical models of the atomic nucleus.
Flowers, B. H. J. Chem. Educ. 1960, 37, 610.
Atomic Properties / Structure
Atomic models in teaching chemistry  Sanderson, R. T.
Contains directions for constructing and using atomic models for instructional purposes.
Sanderson, R. T. J. Chem. Educ. 1960, 37, 307.
Atomic Properties / Structure
Valence: A laboratory exercise for general chemistry  Sanderson, R. T.
In this exercise, each student carefully examines each of a set of thirteen different atomic models with different valence configurations, writing down certain pertinent observations and independently-reasoned conclusions about them.
Sanderson, R. T. J. Chem. Educ. 1960, 37, 261.
Atomic Properties / Structure
Models for demonstrating electronegativity and "partial charge"  Sanderson, R. T.
Describes a three-dimensional set of atomic models arranged periodically to illustrate trend in electronegativity and the use of molecular models to illustrate important concepts in general chemistry.
Sanderson, R. T. J. Chem. Educ. 1959, 36, 507.
Atomic Properties / Structure |
Periodicity / Periodic Table |
Molecular Modeling |
Molecular Properties / Structure |
Crystals / Crystallography |
Nonmetals
Atomic models for a beginning course in college chemistry  Dodson, Vance H.
Describes a simple, three-dimensional models illustrating the fundamental parts of the atom.
Dodson, Vance H. J. Chem. Educ. 1956, 33, 529.
Atomic Properties / Structure
A jig for making atomic models  Decker, Beulah F.; Asp, E. T.
Presents a simple hand-operated instrument for boring holes in cork balls at positions of interatomic bonds and examples of models constructed using this device.
Decker, Beulah F.; Asp, E. T. J. Chem. Educ. 1955, 32, 75.
Atomic Properties / Structure |
Molecular Modeling