In this article, the place of aluminum in the periodic table and its physical and chemical properties, which is one of the elements belonging to group III A of the periodic system, is studied. Aluminum is a metal with atomic number 13 in the third period and group III A of the periodic table. This article analyzes properties of aluminum such as atomic structure, ionization energy, electronegativity and oxidation state. Aluminum's physical properties, including density, melting and boiling points, electrical and thermal conductivity, and chemical behavior, are also discussed extensively. In particular, its passivation under the influence of the atmosphere and resistance to corrosion are shown as one of the important aspects. The article also briefly covers the importance of aluminum in industry and technology, its extraction and processing.
In conditions of old-irrigated typical gray soils, the use of ammonium nitrate (N200 kg / ha) containing calcium and calcium, magnesium and liquid nitrogen calcium (N200 kg / ha) containing trace elements (copper, zinc and molybdenum) against the background of P140 K100 kg / ha improves the accumulation of total nitrogen , phosphorus and potassium in the organs of cotton.
This paper examines pedagogical issues of self-development of the personality of cadets in the process of higher military education. The relevance of the topic is due to the need to develop in future officers not only professional skills, but also personal qualities that contribute to successful service and effective interaction in the team.