Importance of classification of elements

At the last of 17th century only a few elements were known, but in 18th and 19th century elements were discovered frequently, with discovery of new elements , study of elements becomes difficult.

To make study easier there is a need of classification of elements.

Today it's very easy to study all the physical and chemical properties of 118 known elements, this is possible because  of well classification of elements known as "modern periodic table" or "long form of the periodic table".

But this periodic table is not designed at once, there is a great history of classification of elements.

Also read:- brief history of classification of elements