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Besalú, Emili – Journal of Chemical Education, 2013
A periodic table is constructed from the consideration of periodic properties and the application of the principal components analysis technique. This procedure is useful for objects classification and data reduction and has been used in the field of chemistry for many applications, such as lanthanides, molecules, or conformers classification.…
Descriptors: Chemistry, Classification, Statistics, Computation
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Martí-Centelles, Vicente; Rubio-Magnieto, Jenifer – Journal of Chemical Education, 2014
Deep knowledge of the periodic table is one of the most important keys to understand the basic principles of Chemistry. Memorizing the elements of the groups and periods is one of the most commonly used strategies to learn the position of each element in the periodic table; nevertheless, it is a hard task for most students. The use of card games…
Descriptors: Chemistry, Tables (Data), Secondary School Science, College Science
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Woods, Gordon – School Science Review, 2019
The formulation of the periodic system by the Russian Mendeleev was followed by the surprising discovery of gallium by the Frenchman de Boisbaudran. The Englishman Ramsay's explanation of an 'impurity' in air led to recognition of a new period. A young fellow countryman, Moseley, justified the expected existence of 92 elements. A German couple,…
Descriptors: Science Instruction, Chemistry, Science History, Charts
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Selco, Jodye; Bruno, Mary; Chan, Sue – Journal of Chemical Education, 2013
Understanding how the periodic table of elements is organized and how to read information from it is fundamental for understanding chemistry. Introductory chemistry courses usually include discussions detailing what elemental information can be determined by virtue of its position on the periodic table. Although many people have been exposed to…
Descriptors: Chemistry, Hands on Science, Tables (Data), Science Instruction
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Joag, Sushama D. – Journal of Chemical Education, 2014
A simple method to introduce the modern periodic table of elements at the high school level as a game of solving a crossword puzzle is presented here. A survey to test the effectiveness of this new method relative to the conventional method, involving use of a wall-mounted chart of the periodic table, was conducted on a convenience sample. This…
Descriptors: Puzzles, Secondary School Science, Chemistry, Teaching Methods
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ten Hoor, Marten J. – School Science Review, 2017
Contrary to current IUPAC recommendations, the chemical element X should be defined as the nucleus of the X atom. Consequently, different isotopes with their different nuclei belong to different elements, each one with its own physical and chemical properties. This view leads to the conclusion that we no longer have a periodic table of the…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Definitions
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Woelk, Klaus – Journal of Chemical Education, 2015
In a classroom or take-home activity, students are challenged to write their name as a combination of chemical-element symbols and calculate "their" molar mass. Age-appropriate versions ranging from middle school to entry-level college classes are discussed. Acceptable molar-mass suggestions may be used in a competition for the heaviest…
Descriptors: Science Instruction, Elementary School Science, Elementary Schools, Middle Schools
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Larson, Kathleen G.; Long, George R.; Briggs, Michael W. – Journal of Chemical Education, 2012
The mental models of both novice and advanced chemistry students were observed while the students performed a periodic table activity. The mental model framework seems to be an effective way of analyzing student behavior during learning activities. The analysis suggests that students do not recognize periodic trends through the examination of…
Descriptors: Chemistry, Heuristics, Science Instruction, Inquiry
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Franco-Mariscal, Antonio Joaquín; Cano-Iglesias, María José – School Science Review, 2014
This article describes a game designed to help Spanish high school students (grade 10, age 15-16) understand the periodic table. It combines some features of bingo and a puzzle in the same pedagogical game, making it an engaging approach for learning about this important teaching tool. Students are given a verbal clue -- the name of a chemical…
Descriptors: Foreign Countries, Junior High School Students, Chemistry, Science Instruction
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Wallington, Timothy J.; Anderson, James E.; Siegel, Donald J.; Tamor, Michael A.; Mueller, Sherry A.; Winkler, Sandra L.; Nielsen, Ole J. – Journal of Chemical Education, 2013
Providing sustainable mobility is a major challenge that will require new vehicle and fuel technologies. Alternative and future fuels are the subject of considerable research and public interest. A simple approach is presented that can be used in science education lectures at the high school or undergraduate level to provide students with an…
Descriptors: Science Instruction, College Science, Undergraduate Study, Scientific Principles
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Lemes, Mauricio R.; Dal Pino, Arnaldo – Journal of Chemical Education, 2011
Although several chemical elements were not known by end of the 19th century, Mendeleev came up with an astonishing achievement, the periodic table of elements. He was not only able to predict the existence of (then) new elements, but also to provide accurate estimates of their chemical and physical properties. This is a profound example of the…
Descriptors: Chemistry, Classification, Artificial Intelligence, Networks
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Struyf, Jef – Journal of Chemical Education, 2009
An introduction to organic chemistry functional groups and their ionic variants is presented. Functional groups are ordered by the position of their specific (hetero) atom in the periodic table. Lewis structures are compared with their corresponding condensed formulas. (Contains 5 tables.)
Descriptors: Organic Chemistry, Tables (Data), Science Instruction, Correlation
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Winter, Mark J. – Journal of Chemical Education, 2011
Mapping methods employed by geographers, known as diffusion cartograms (diffusion-based density-equalizing maps), are used to present visually interesting and informative plots for data such as income, health, voting patterns, and resource availability. The algorithm involves changing the sizes of geographic regions such as countries or provinces…
Descriptors: Maps, Chemistry, Science Instruction, Instructional Materials
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Wangila, M. J.; Martin, W.; Ronald, M. – Science Education International, 2015
This study examined the effect of Programmed Instruction on students' attitude towards Structure of the Atom and the Periodic Table (SAPT) among mixed (co-educational) secondary schools of Butere district, Kakamega county, Kenya. The quasi-experimental research design was adopted, using the nonrandomized Solomon four-group as a model. The sample…
Descriptors: Programmed Instructional Materials, Teaching Methods, Experimental Groups, Control Groups
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Kurushkin, Mikhail; Kurushkin, Dmitry – Journal of Chemical Education, 2018
A novel educational chart that represents the acid--base behavior of 100 s-, p-, d-, and f-element oxides depending on the element's electronegativity and oxidation state was designed. An updated periodic table of said oxides was developed. A mathematical criterion based on the chart was derived which allows prediction of the behavior of…
Descriptors: Science Instruction, Secondary School Science, High Schools, Chemistry
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