Abstract
The article discusses a new approach to the formation of periods of the Periodic Table of Mendeleev. With the help of the new formula and the first proposed quantum states of the outer electron shells of atoms of chemical elements, the periods of the periodic table are reformatted. It is supposed to reduce the number of periods in the table by introducing the corresponding sub-periods. This is confirmed by the material given in the article. The following description of the order of formation of electron layers is proposed: the principal quantum number (n), then the newly proposed quantum states of electrons («first» and «second»), which in turn constitute the electronic configurations of sub-periods in periods, and only then the remaining quantum orbitals (s, p, d and f).
Highlights
Oil and gas technogenesis has become one of the most acute challenges of the 21st century
The purpose of the study is to assess the changes in the chemical composition of the soils of the drilling sites of the fields under oil pollution; to determine the content of gross forms of heavy metals (HM), and to assess the degree of their pollution of soils in the studied areas
The Republic of Kalmykia is located in the zone of steppes, semi-deserts and deserts
Summary
Oil and gas technogenesis has become one of the most acute challenges of the 21st century. It covers vast areas of all inhabited continents of the Earth. Despite the improvement in the technology of extraction and its transportation, the problem of environmental pollution by oil products and associated heavy metals remains a major environmental problem. Monitoring and forecasting the state of the environment in the sphere of influence of the oil and gas complex is a prerequisite for taking timely measures to protect the natural environment from degradation. The content of heavy metals in the soil is a complex and informative indicator of the degree of soil pollution and can be used in environmental monitoring of technologically disturbed territories [4,5,6]
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