| Journal Articles: 21 results |
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Teaching Avogadro's Hypothesis and Helping Students to See the World Differently Brett Criswell This article uses a model from educational psychologyChi's theory of ontological misclassificationto explain the source of students' difficulties in understanding Avogadro's hypothesis and provide a method to successfully teach this fundamental concept. Criswell, Brett. J. Chem. Educ. 2008, 85, 1372.
Atomic Properties / Structure |
Gases
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Mustard Gas: Its Pre-World War I History Ronald J. Duchovic and Joel A. Vilensky A review of the history of the synthesis of mustard gas by 19th century European chemists highlights the increasing sophistication of the chemical sciences during this time. Duchovic, Ronald J.; Vilensky, Joel A. J. Chem. Educ. 2007, 84, 944.
Applications of Chemistry |
Atomic Properties / Structure |
Toxicology
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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
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How We Teach Molecular Structure to Freshmen Michael O. Hurst Examination of how textbooks discuss various aspects of molecular structure; conclusion that much of general chemistry is taught the way it is for historical and not pedagogical reasons. Hurst, Michael O. J. Chem. Educ. 2002, 79, 763.
Covalent Bonding |
Atomic Properties / Structure |
Molecular Properties / Structure |
Lewis Structures |
VSEPR Theory |
Valence Bond Theory |
MO Theory
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Developmental instruction: Part II. Application of the Perry model to general chemistry Finster, David C. The Perry scheme offers a framework in which teachers can understand how students make meaning of their world, and specific examples on how instructors need to teach these students so that the students can advance as learners. Finster, David C. J. Chem. Educ. 1991, 68, 752.
Learning Theories |
Atomic Properties / Structure |
Chemometrics |
Descriptive Chemistry
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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
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Simulation of Rutherford's experiment Bishop, Carl B. Apparatus and procedure to simulate Rutherford's classic gold foil experiment. Bishop, Carl B. J. Chem. Educ. 1990, 67, 889.
Atomic Properties / Structure
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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
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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
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The historic atom: From d to q Smith, Richard A Styrofoam model of the atom that has been used to show middle and high school students the historical development of the atomic model. Smith, Richard J. Chem. Educ. 1989, 66, 637.
Atomic Properties / Structure
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Pandemonium pesticide: A simple demonstration illustrating some fundamental chemical concepts Kauffman, George B.; Chooljian, Steven H.; Ebner, Ronald D. Demonstration that uses large, visible particles to simulate calculations of atomic / molecular mass, percentage composition, and molecular formula. Kauffman, George B.; Chooljian, Steven H.; Ebner, Ronald D. J. Chem. Educ. 1985, 62, 870.
Atomic Properties / Structure |
Molecular Properties / Structure |
Stoichiometry |
Chemometrics
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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
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Should orbitals be x-rated in beginning chemistry courses? Bent, Henry A. Memorizing orbital rules helps students earn credits in science without knowing what science is. Bent, Henry A. J. Chem. Educ. 1984, 61, 421.
Atomic Properties / Structure
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Developing models: What is the atom really like? Records, Roger M. Using physical and computer models to illustrate historical changes in our view of the atom. Records, Roger M. J. Chem. Educ. 1982, 59, 307.
Atomic Properties / Structure |
Quantum Chemistry
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Empirical formulas Ryan, Dennis P. This question forces one to duplicate the line of reasoning used by Dalton in his initial formulation of atomic weights; it tests for the ability to deduce atomic sizes and to calculate empirical formulas. Ryan, Dennis P. J. Chem. Educ. 1979, 56, 528.
Nomenclature / Units / Symbols |
Atomic Properties / Structure |
Periodicity / Periodic Table
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Participatory lecture demonstrations Battino, Rubin Examples of participatory lecture demonstrations in chromatography, chemical kinetics, balancing equations, the gas laws, the kinetic-molecular theory, Henry's law, electronic energy levels in atoms, translational, vibrational, and rotational energies of molecules, and organic chemistry. Battino, Rubin J. Chem. Educ. 1979, 56, 39.
Chromatography |
Kinetic-Molecular Theory |
Kinetics |
Stoichiometry |
Gases |
Atomic Properties / Structure |
Molecular Properties / Structure
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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
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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
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Philosophical antecedents of the modern atom Gorman, Mel The purpose of this paper is to present a brief survey of Greek atomism, its rise, recession, and revival. Gorman, Mel J. Chem. Educ. 1960, 37, 100.
Atomic Properties / Structure
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Atomic-weight variations in nature Boggs, James E. Atoms of the same element may have different masses (due to isotopic differences) depending on their source. Boggs, James E. J. Chem. Educ. 1955, 32, 400.
Atomic Properties / Structure |
Nuclear / Radiochemistry |
Isotopes
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BerzeliusPioneer atomic weight chemist MacNevin, William Marshall Examines the many methods employed by Berzelius in determining atomic weights. MacNevin, William Marshall J. Chem. Educ. 1954, 31, 207.
Atomic Properties / Structure
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