Results 1 to 10 of about 1,151,486 (352)

A periodic-like table of space groups [PDF]

open access: goldActa 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.
Bart Kahr
doaj   +6 more sources

Recent Advances in Nanomaterials of Group XIV Elements of Periodic Table in Breast Cancer Treatment [PDF]

open access: goldPharmaceutics, 2022
Breast cancer is one of the most common malignancies and a leading cause of cancer-related mortality among women worldwide. The elements of group XIV in the periodic table exhibit a wide range of chemical manners.
Azadeh Hekmat   +5 more
doaj   +3 more sources

The location and composition of Group 3 of the periodic table [PDF]

open access: hybridFoundations 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 ...
René E. Vernon
semanticscholar   +3 more sources

Correction to: The location and composition of Group 3 of the periodic table [PDF]

open access: bronzeFoundations of Chemistry, 2020
In the original publication of the article, the author has identified four belated corrections which are listed below.
René E. Vernon
semanticscholar   +3 more sources

The Periodic Table and the Platinum Group Metals

open access: diamondPlatinum 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 ...
W. Griffith
semanticscholar   +3 more sources

The Periodic Table and Kinetics?

open access: yesCHIMIA, 2019
Mendeleev in his first publication ordered the chemical elements following an apparent periodicity of properties such as atomic volume and valence. The reactivity of the elements was only studied systematically many years later.
Lothar Helm, André E. Merbach
doaj   +2 more sources

Evaluation of the periodic table as a teaching tool and content for conceptual change in chemical processes

open access: yesJournal of Science and Education, 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.
Thabo Mhlongo, Thomas Dipogiso Sedumedi
doaj   +1 more source

Effect of Concept Mapping Teaching Approach on Students’ Academic Performance in Chemistry in Senior Secondary Schools

open access: yesIndonesian Journal of Educational Research and Technology, 2023
This study investigated the effect of the concept mapping teaching approach on students’ performance in Chemistry in senior secondary schools regarding a periodic table concept.
Torpev Terver Francis   +1 more
doaj   +1 more source

The Use of Educational Board Game as a Supplemental Tool in Learning Periodic Table of Elements Among Senior High School Students

open access: yesAmerican Journal of Education and Technology, 2023
This study aims to assess the effectiveness of the created educational board game as a supplemental tool in learning the core concepts of the periodic table of elements. A quasi-experimental approach was utilized in addressing the objectives of the study
Lalaine N Alejandria   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy