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Substantia, 2019 Once upon a time, there was a Russian guy named Dmitri Mendeleev (1834-1907), who became Doctor of Science in 1865 at Saint Petersburg State University for his dissertation «On the Combinations of Water with Alcohol», a most important mixture in eastern ...
Marc Henry
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Building words from chemical elements: a fun and inclusive approach to introduce the periodic table [PDF]
Chemistry Teacher InternationalA program for writing words (or personal names) by combining chemical element symbols is developed in the context of classroom activity to introduce the periodic table, properties of elements, and periodic trends.
Taweetham Limpanuparb +2 more
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Substantia, 2019 It is a great honour for me to write these few lines of preface to the special issues of Substantia dedicated to the 150th anniversary of the Periodic Table by Dmitrij Mendeleev.
Luigi Dei
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Problems with Periodic Table Theory-Praxis in Chemistry Topics Teaching
Indonesian Journal of Science and Mathematics Education, 2023 The two main chemical concepts that are the subject of this investigation are chemical bonds and related reactions. This research examines how the periodic table concept can help teachers improve science teaching. To help students understand the contents
Thabo Mhlongo, Thomas Dipogiso Sedumedi
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The generalized Lindemann melting coefficient [PDF]
, 2020 Lindemann developed the melting temperature theory over 100 years ago, known as the Lindemann criterion. Its main assumption is that melting occurs when the root-mean-square vibration amplitude of ions and atoms in crystals exceeds a critical fraction, h
Hepburn, Ian +2 more
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Periodic Unit and its Effect on Improving Academic Performance of Students in Anatomy- A Pilot Study [PDF]
International Journal of Anatomy Radiology and Surgery, 2021 Introduction: Anatomy is one of the basic sciences of medicine. Optimal anatomical knowledge is essential for competent future doctors. Assessments in medical education not only help the students but also, the teachers to address the critical areas of
NB Pushpa, K Pushpalatha, MC Smitha
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Universal Correction of Density Functional Theory to Include London Dispersion (up to Lr, Element 103) [PDF]
, 2012 Conventional density functional theory (DFT) fails to describe accurately the London dispersion essential for describing molecular interactions in soft matter (biological systems, polymers, nucleic acids) and molecular crystals.
Choi, Jeong-Mo +2 more
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, 2011 This article carefully analyzes a recent paper by Weisberg in which it is claimed that when Mendeleev discovered the periodic table he was not working as a modeler but instead as a theorist.
Scerri, Eric
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Química Nova, 2015 The aim of this paper was to analyze the historical approaches to the periodic table in general chemistry textbooks used in Brazilian universities in the twentieth century.
Helena S. A. Leite, Paulo A. Porto
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Exponentially small asymptotic formulas for the length spectrum in some billiard tables [PDF]
, 2015 Let $q \ge 3$ be a period. There are at least two $(1,q)$-periodic trajectories inside any smooth strictly convex billiard table, and all of them have the same length when the table is an ellipse or a circle.
Martín, Pau +2 more
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