Question

. why classification of elements is necessary chemistry chapter 5

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Answer 1

Classification of elements in groups provides as a fixed pattern in which the element change their properties periodically. Periodic table made the study of physical and chemical properties of element simple and organized.

OR

The systematic classification of the elements in the Periodic Table has the following advantages-

1. It enables chemists to analyse and understand the properties of the elements and their compounds more systematically and orderly.

2. It enables chemists to predict the properties of the elements and their compounds based on their positions in the Periodic Table, and vice versa.

3. It becomes easier to study, understand, compare and contrast the related properties among the elements and their compounds from different groups.

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Answer 2

to study the large number of elements with ,ease various attempt were made