CHEM 177 Lecture Notes - Lecture 9: Diatomic Molecule, Bayerischer Rundfunk, Ion

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To determine the relative reactivity of elements in three groups of the. Periodic table as a function of their position in that table based on observation of their characteristic physical and chemical properties. The design of the experiment assumes familiarity with the organization of the periodic table. Students should be able to recognize evidences of chemical reaction and assess the relative intensity of such reactions, write chemical equations and recognize situations in which the concepts of oxidation and reduction apply. The periodic the grouping of elements found in the periodic table we know was. Table proposed by demetri mendelev in 1869 and is based on similarities in chemical behavior. The vertical columns, or groups, consist of elements whose reactivity with a number of reactants such as oxygen in the air, water, acids or bases--are similar, differing only in intensity. Elements in horizontal rows, or periods, demonstrate distinctly different responses to the same reactants.