Classwork Series and Exercises {Chemistry- SS2}: Periodic Table
Introduction The most important classification in chemistry is the arrangement of the elements in the periodic table. In 1869, Mendeleev, a Russian scientist, was the first to construct a periodic table. He arranged the elements in order of increasing relative atomic mass. He pointed out that elements with similar properties kept recurring at regular intervals […]
Classwork Series and Exercises {Chemistry- SS2}: Periodic Table Read More »
