Periodic law and system of chemical elements: 150 years from the date of discovery

Author:

Mikhailov Oleg V.1

Affiliation:

1. Department of Analytical Chemistry, Kazan National Research Technological University, K. Marx Street 68, 420015 Kazan, Russia

Abstract

AbstractThe data concerning the formulation of the Periodic Law and certain graphic variants of its interpretation, proposed at different times for 150 years from the moment of the opening of this law, have been presented and discussed. It was stated that, despite the presence of a very significant (several hundred) number of these variants, only two tabular versions of the Periodic Table of chemical elements, namely, the so-called “short-periodic” proposed by Dmitri Mendeleev and the so-called “long-periodic” proposed by Alfred Werner (which was recommended in the fullness of time by the International Union of Pure and Applied Chemistry), received practical applications. A modification of the indicated tabular variants, aimed at overcoming their shortcomings, has been proposed. The question of the existence of the upper boundary of the Periodic System and the probable prospects for obtaining super-heavy elements with a nuclear charge of Z > 110, in particular a new category of them – 5g-elements, has been also discussed.

Publisher

Walter de Gruyter GmbH

Subject

Inorganic Chemistry

Reference84 articles.

1. On the question of the sequence of terms in the spectra of many-electron atoms;J. Exp. Theor. Phys.,1953

2. Description of structure and properties of superheavy nuclei;Prog. Part. Nucl. Phys.,2007

3. (n+l)-groups of terms in the spectra of alkaline elements;Dokl. Acad. Sci. USSR.,1952

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