Periodic element classification is the process of categorizing the elements into various classes. This strategy involves grouping like things together and separating those that are unrelated by comparing the characteristics of several elements. It aids in our comprehension of how various compounds combine to form various elements.
Without the classification of elements, it would be extremely difficult and time-consuming to individually study the chemistry of all the elements. Hence, to simplify and systematize the study of elements and their compounds, they are classified into groups and periods.
Early attempts of classification
The chemical and physical characteristics that scientists had noticed served as the foundation for the early attempts to classify elements. We compared a few reactions using well-known substances and elements.
They were arranged according to their atomic weights. They tried to study the periodicity of the properties as the atomic weight increased in order to categorise them into groups.
The law of octaves was then put forth after the law of triads. These laws were proposed by Doberneiner, Chancourtois, and Newlands, who also created several tables.