Keyword: «periodic table of chemical elements»

In the article, the authors focus on the methodological approaches and scientific methods of D. I. Mendeleyev, relevant for solving research problems in social and humanitarian disciplines. It is noted that the research activities of D. I. Mendeleyev, a graduate of the Physics and Mathematics Faculty of the St. Petersburg Pedagogical Institute who made a scientific discovery of the law of periodicity in chemistry, is a striking example of the productivity of an interdisciplinary approach. Particular attention is paid to his discovery of the law of periodicity of chemical elements, which is based on the methods of classification and systematization. The conclusion is made about the need to develop students' understanding of the diversity of approaches and methods for solving research problems.