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                                                                LESSON 1. SECTION 2.

                               MENDELEIEV PERIODIC TABLE. OXIDATION NUMBERS AND FORMULATION.



- Why was Mendeleiev so famous , because of his periodic table? :







   


                                                                   OXIDATION NUMBERS (VALENCIA).


 - What a oxidation number is and what is used for? :




   3. Here you have a periodic table with the most important oxidation numbers :
   





                                                                       FORMULATION.

    Oxidation numbers are used to formulate chemical compounds to obtain the compound formula, like NaCl or CaO, etc. See here how they are used :

 







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