Question

Write Newland's Law of 'Octaves' for classification of elements.

Answer 1

Newland's Law of Octaves $\to$

In $1864$, Newlands arranged the known $56$ elements in the order of increasing atomic masses. He observed that the properties of every eighth element are similar to the properties of the first element. Based on this observation, he proposed the Law of Octaves for the classification of elements.

According to this law, "When the elements are arranged in the increasing order of their atomic masses, the properties of every eighth element are similar to the first."