Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents
Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents

Author: Tyler B. Coplen

Publisher:

Published: 2002

Total Pages: 112

ISBN-13:

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Documented variations in the isotopic compositions of some chemical elements are responsible for expanded uncertainties in the standard atomic weights published by the Commission on Atomic Weights and Isotopic Abundances of the International Union of Pure and Applied Chemistry. This report summarizes reported variations in the isotopic compositions of 20 elements that are due to physical and chemical fractionation processes (not due to radioactive decay) and their effects on the standard atomic weight uncertainties. For 11 of those elements (hydrogen, lithium, boron, carbon, nitrogen, oxygen, silicon, sulfur, chlorine, copper, and selenium), standard atomic weight uncertainties have been assigned values that are substantially larger than analytical uncertainties because of common isotope abundance variations in materials of natural terrestrial origin. For 2 elements (chromium and thallium), recently reported isotope abundance variations potentially are large enough to result in future expansion of their atomic weight uncertainties. For 7 elements (magnesium, calcium, iron, zinc, molybdenum, palladium, and tellurium), documented isotope-abundance variations in materials of natural terrestrial origin are too small to have a significant effect on their standard atomic weight uncertainties.

Nomenclature of Inorganic Chemistry
Nomenclature of Inorganic Chemistry

Author: International Union of Pure and Applied Chemistry

Publisher: Royal Society of Chemistry

Published: 2005

Total Pages: 379

ISBN-13: 0854044388

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The 'Red Book' is the definitive guide for scientists requiring internationally approved inorganic nomenclature in a legal or regulatory environment.

Determination of the Atomic Weight of Cadmium and the Preparation of Certain of Its Sub-Compounds
Determination of the Atomic Weight of Cadmium and the Preparation of Certain of Its Sub-Compounds

Author: Harry C. Jones

Publisher: Good Press

Published: 2022-08-21

Total Pages: 41

ISBN-13:

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"Determination of the Atomic Weight of Cadmium and the Preparation of Certain of Its Sub-Compounds" by Harry C. Jones. Published by Good Press. Good Press publishes a wide range of titles that encompasses every genre. From well-known classics & literary fiction and non-fiction to forgotten−or yet undiscovered gems−of world literature, we issue the books that need to be read. Each Good Press edition has been meticulously edited and formatted to boost readability for all e-readers and devices. Our goal is to produce eBooks that are user-friendly and accessible to everyone in a high-quality digital format.

Quantities, Units and Symbols in Physical Chemistry
Quantities, Units and Symbols in Physical Chemistry

Author: International Union of Pure and Applied Chemistry. Physical and Biophysical Chemistry Division

Publisher: Royal Society of Chemistry

Published: 2007

Total Pages: 240

ISBN-13: 0854044337

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Prepared by the IUPAC Physical Chemistry Division this definitive manual, now in its third edition, is designed to improve the exchange of scientific information among the readers in different disciplines and across different nations. This book has been systematically brought up to date and new sections added to reflect the increasing volume of scientific literature and terminology and expressions being used. The Third Edition reflects the experience of the contributors with the previous editions and the comments and feedback have been integrated into this essential resource. This edition has been compiled in machine-readable form and will be available online.

Atomic Weights of the Elements 1975
Atomic Weights of the Elements 1975

Author: Sam Stuart

Publisher: Elsevier

Published: 2013-09-03

Total Pages: 22

ISBN-13: 1483284549

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Atomic Weights of the Elements 1975 outlines the different problems that arise from the imprecise definition of atomic weight or relative atomic mass. This book reviews the natural isotopic composition of the elements and tabulates the relative atomic masses for selected radioisotopes. This book is comprised of one chapter. This text begins with an overview of the problems arising from the actual or potential variability of the atomic weights of several elements. This book then discusses the significance of having informative labels on chemicals that are commercially available. The reader is also introduced to the concept of a defined standard atomic weight. This book discusses as well the important changes in annotations and the wordings of footnotes to the Table. This book is a valuable resource for chemists, teachers, and students. Research workers interested in atomic weights of the various elements will also find this book extremely useful.

Concept Development Studies in Chemistry
Concept Development Studies in Chemistry

Author: John S. Hutchinson

Publisher: Orange Grove Texts Plus

Published: 2009-09-24

Total Pages: 0

ISBN-13: 9781616100216

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This is an on-line textbook for an Introductory General Chemistry course. Each module develops a central concept in Chemistry from experimental observations and inductive reasoning. This approach complements an interactive or active learning teaching approach. Additional multimedia resources can be found at: http: //cnx.org/content/col10264/1.5