Newlands Law of Octaves

Newlands’ Law of Octaves

  • He arranged the elements according to the increasing order of atomic mass.
  • He found that every eighth element had properties similar to that of the first. He compared this to the octaves found in music. Therefore, he called it the ‘Law of Octaves’.

Limitations:

  • It was found that the Law of Octaves was applicable only up to calcium, as after calcium every eighth element did not possess properties similar to that of the first.
  • It was assumed by Newlands that only 56 elements existed in nature and no more elements would be discovered in the future.
  • Cobalt and nickel are in the same slot and these are placed in the same column as fluorine, chlorine, and bromine which have very different properties than these elements. 
  • Iron, which resembles cobalt and nickel in properties, has been placed far away from these elements.