Psychology
Interview with the rector Interview with the rector
Rector of the Moscow Pedagogical State University Alexey Lubkov to Kazan University, he not only got acquainted with the experience of developing the education system and training of teaching staff at KFU and appreciated the initiatives of Kazan
Atomic structure of solids Experimental work “Growing crystals”
SYMMETRY OF CRYSTALS SYMMETRY OF CRYSTALS The property of crystals to align with themselves during rotations, reflections, parallel transfers, or part or a combination of these operations. Symmetry means the possibility of transforming an object that combines it with itself.
Magnetic properties of substances Relative magnetic permeability of a substance
From many years of technical practice, we know that the inductance of a coil strongly depends on the characteristics of the environment where the coil is located. If a ferromagnetic core is added to a coil of copper wire having a known inductance L0, then
Inverse population of levels
To create a laser, it is necessary to obtain an inversion between any pair of levels in the active medium. The mechanism by which the inversion is created is called pumping. From the conclusions obtained in the previous section it follows that it is impossible to create an inverse us
Size distribution (pores, particles) Estimation of pore volume distribution
Adsorptive agents used: 1) Nitrogen (99.9999%) at liquid nitrogen temperature (77.4 K) 2) If the customer provides reagents, it is possible to carry out measurements using various, incl. liquid adsorbents: water, benzene, hexane, SF 6, methane, eta
Physical and chemical properties of zinc
It is located in the second group, a secondary subgroup of the periodic table of Mendeleev and is a transition metal. The serial number of the element is 30, mass is 65.37. The electronic configuration of the outer layer of the atom is 4s2. The only and constant is “+2”. Dl
General characteristics of elements VI A subgroup Elements 6 a subgroup
The elements of the main subgroup of group VI have the common group name “chalcogens”. Their atoms are electronic analogues, since they have the same structure of the outer electronic layer (ns 2 np 4). p-elements, non-metals (except polonium) Valence II, IV;
Biography of Faraday. Great scientists. Michael Faraday. discovery of electromagnetic rotation
Faraday Michael (1791-1867), English physicist, founder of the doctrine of the electromagnetic field. Born on September 22, 1791 in London in the family of a blacksmith. He began working early in a bookbinding shop, where he became interested in reading. Michael was shocked by the articles on electricity
Cesium element characteristics
The characteristics of cesium, its structural features and qualities characteristic of this element must be covered in a chemistry course. Not only schoolchildren, but also students of chemical specialties should know the specific features of this compound. Application
Selection of stoichiometric coefficients oVR The sum of the stoichiometric coefficients in the equation is equal to
When drawing up an equation for an oxidation-reduction reaction (ORR), it is necessary to determine the reducing agent, the oxidizing agent, and the number of electrons given and received. Stoichiometric ORR coefficients are selected using either the electronic balance method or
