Question

write short notes on following.
1.doberiner's law of trade
2. newland's law of octaves​

Answer 1

1. Dobereiner law of triads states that the average of the atomic masses of the first and third element in a triad will be roughly equal to the atomic mass of the second element in that triad.
2. Newland's law of octaves states that when elements are ordered according to their increasing atomic mass, the properties of every eighth element are the same as the first.