Results 11 to 20 of about 802,936 (223)
A Group-Theoretical Approach to the Periodic Table of Chemical Elements: Old and New Developments [PDF]
, 2003 This paper is a companion article to the review paper by the present author devoted to the classification of matter constituents (chemical elements and particles) and published in the first part of the proceedings of The Second Harry Wiener International Memorial Conference (see quant-ph/0310155).
Kibler, M. R.
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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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A periodic-like table of space groups
Acta Crystallographica Section E Crystallographic Communications, 2023 There are about 100 chemical elements, and 200 space groups, rounding to the nearest hundreds. The elements, by virtue of the iconic periodic table, which hangs in schoolrooms worldwide, are part of our common culture. Few on the outside of solid-state science and discrete mathematics know of the remarkable enumeration of the space groups and how they ...
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The location and composition of Group 3 of the periodic table [PDF]
Foundations of Chemistry, 2020 AbstractGroup 3 as Sc–Y–La, rather than Sc–Y–Lu, dominates the literature. The history of this situation, including involvement by the IUPAC, is summarised. I step back from the minutiae of physical, chemical, and electronic properties and explore considerations of regularity and symmetry, natural kinds, and quantum mechanics, finding these to be ...
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Model Equation Based on the 8 Groups and the 7 Periods in the Periodic Table of Elements
International Research in Education, 2021 The periodic table of chemistry contains all synthetic and naturally occurring elements. The elements are arranged in seven horizontal periods from left to right with increasing atomic number. The periodic table is divided into two groups: metals and nonmetals, within elements moving from left to right, the elements get less metallic, culminating in ...
Orwa Houshia +3 more
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Evaluation of the periodic table as a teaching tool and content for conceptual change in chemical processes [PDF]
, 2023 This study focused on two crucial chemistry concepts, chemical bonding and related reactions. It explored how learners may conceptually use the periodic table in their scientific understanding.
Mhlongo, Thabo +1 more
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From the Mendeleev periodic table to particle physics and back to the periodic table [PDF]
, 2006 We briefly describe in this paper the passage from Mendeleev's chemistry (1869) to atomic physics (in the 1900's), nuclear physics (in the 1932's) and particle physics (from 1953 to 2006).
A.O. Barut +19 more
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The Periodic Table and the Platinum Group Metals [PDF]
Platinum Metals Review, 2008 The year 2007 marked the centenary of the death of Dmitri Mendeleev (1834–1907). This article discusses how he and some of his predecessors accommodated the platinum group metals (pgms) in the Periodic Table, and it considers the placing of their three transuranic congeners: hassium ( 108 Hs ...
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The Mendeleev-Meyer force project [PDF]
, 2016 Here we present the Mendeleev–Meyer Force Project which aims at tabulating all materials and substances in a fashion similar to the periodic table. The goal is to group and tabulate substances using nanoscale force footprints rather than atomic number or
Amadei, Carlo Alberto +9 more
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Correction to: The location and composition of Group 3 of the periodic table [PDF]
Foundations of Chemistry, 2020 In the original publication of the article, the author has identified four belated corrections which are listed below.
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