Question

Steta Newland's law of octaves

Answer 1

Law of octaves, in chemistry, the generalization made by the English chemist J.A.R. Newlands in 1865 that, if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements.

Answer 2

Your ans is -

The English scientist John Newlands correlated the atomic masses  of elements to their properties in a different way . In the year 1866 Newlands  arranged the elements known at that time in an increasing order of their atomic masses . It started up with the lightest element hydrogen and ended up with thorium . He founded that every eight element had properties similar to those of first . Newlands compared this similarity to the octaves in music . He called the similarity observed in the first and the eight element as the law of octaves