Question

What were the limitations of Newland's law of octaves?

Answer 1

The major limitations of Newland's law of octaves are:

1. It was applicable to only lighter elements having atomic masses upto $40u$, i.e., upto calcium. After calcium, the first and the eighth element did not have similar properties.
2. Those elements that were discovered after Newland's octaves did not follow the law of octaves.
3. Some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.