Question

Periodic classification of elements important noteseduction

Answer 1

The elements are the basic units of all types of matter. In 1800, only 31 elements were discovered. Fifty years later by 1850, scientists had discovered 63 chemical elements and the numbers kept increasing. With the discovery and study of more and more elements and their compounds, the various data about them also increased. It became progressively difficult to organise all the known elements but different scientists made attempts to look for some trends and patterns in their properties. Few important attempts for the classification of elements are described above.