Question

why do we need classification of elements​

Answer 1

Answer:

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It enables chemists to predict the properties of the elements and their compounds based on their positions in the Periodic Table, and vice versa. It becomes easier to study, understand, compare and contrast the related properties among the elements and their compounds from different groups.

Answer 2

Answer:

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.