Question

Limitation of Newlands Law..
Limitation of Mendeleevs Law..
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Answer 1

Answer:

Limitations of Newland's Law of Octaves:

• Newland could arrange elements only up to calcium, out of the total 56 elements known.
• After calcium, every eighth element did not possess properties similar to that of the first.
• Only 56 elements were known at the time of Newlands, but later several elements were discovered.

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Answer 2

Answer:

The major limitations were: It applied to only lighter elements having atomic masses up to 40 u, i.e., up to calcium. The first and eighth elements after calcium did not have the same properties. Only 63 elements were considered to exist in nature, and no new elements would be discovered in the future.