Periodic Classification of Elements class 10 chemistry
Need for the Periodic Classification of Elements:- When there were only 31 elements it was relatively easy to study the properties of these chemical elements individually. Due to discovery of new elements it is difficult to study the properties of every element individual and making it difficult to remember the behavior and properties of these elements. This created the need for the periodic classification of elements. Advantages of classification: Classification of elements provides as a fixed pattern in which the element change their properties. It is also make easy to understand how similar elements form the compounds and so predict the compound formation. Helps in discovering new elements 1. Lavoisier's Classification (1789) - 33 elements Lavoisier's classification was based on the basis of the physical properties of the elements, such as hardness, malleability and lustre. He classified the elements into...