Genetic link between major classes of inorganic compounds

The teacher explains the concept of "genetic bondage." Formation of the genetic series of metals and nonmetals with the examples previously mentioned. The teacher shows a distinction in the genetic series of active and non-active metals. Students are divided into groups. For each group, one element (phosphorus, aluminum, lithium) must write the reaction equations that describe this scheme and form a genetic set. Together with the proposed reactions and drawings. Students practice in pairs to explore interactions between inorganic compounds. The teacher repeats the course of work with the students and the rules of safety, especially when heating is needed. In the course of the practice, the teacher monitors the implementation of the safety rules and helps the students who are experiencing problems in practice.