Question

why do we need to classify elements

Answer 1

There are nearly 114 elements are known and we need to study them all.

But, it is impossible to remember all the physical and chemical properties of each and every element so we need to classify them on the basis of some similar characteristics so that, if we study one element we would be able to understand the properties if others too.

Answer 2

The number of elements discovered has increased, making it difficult to remember the behavior and properties of these elements. Hence it is important to classify elements according to their properties. It is also necessary to understand how they form the compounds.

Grouping of elements into different classes is called periodic classification of elements.

This method is requires arranging the elements that are alike and separating the elements that are unlike.

To compare the properties of elements.

It helps us understand how different elements form different compounds.